4.56 beta

39 files changed, 280 insertions, 141 deletions

diff --git a/C/Compress/Huffman/HuffmanEncode.h b/C/Compress/Huffman/HuffmanEncode.h
index e59c86ad..c8acc283 100755
--- a/C/Compress/Huffman/HuffmanEncode.h
+++ b/C/Compress/Huffman/HuffmanEncode.h
@@ -5,8 +5,6 @@
 
 #include "../../Types.h"
 
-#define HUFFMAN_TEMP_SIZE(num) (num * 2)
-
 /*
 Conditions:
   num <= 1024 = 2 ^ NUM_BITS
diff --git a/C/Compress/Lz/MatchFinder.c b/C/Compress/Lz/MatchFinder.c
index 9c10c7ee..0f530fc1 100755
--- a/C/Compress/Lz/MatchFinder.c
+++ b/C/Compress/Lz/MatchFinder.c
@@ -503,7 +503,7 @@ UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
   {
     for (; maxLen != lenLimit; maxLen++)
-      if (cur[(size_t)maxLen - delta2] != cur[maxLen])
+      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
         break;
     distances[0] = maxLen;
     distances[1] = delta2 - 1;
@@ -550,7 +550,7 @@ UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (offset != 0)
   {
     for (; maxLen != lenLimit; maxLen++)
-      if (cur[(size_t)maxLen - delta2] != cur[maxLen])
+      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
         break;
     distances[offset - 2] = maxLen;
     if (maxLen == lenLimit)
@@ -597,7 +597,7 @@ UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
   if (offset != 0)
   {
     for (; maxLen != lenLimit; maxLen++)
-      if (cur[(size_t)maxLen - delta2] != cur[maxLen])
+      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
         break;
     distances[offset - 2] = maxLen;
     if (maxLen == lenLimit)
diff --git a/C/Compress/Lz/MatchFinderMt.c b/C/Compress/Lz/MatchFinderMt.c
index fcb294cf..ea65a6e6 100755
--- a/C/Compress/Lz/MatchFinderMt.c
+++ b/C/Compress/Lz/MatchFinderMt.c
@@ -142,18 +142,11 @@ void MtSync_Init(CMtSync *p) { p->needStart = True; }
 
 #define kMtMaxValForNormalize 0xFFFFFFFF
 
-/*
-Notes:
-instead of "size_t pos" we can use "UInt32 pos".
-But MSVC++ compilers have BUG:
-sometimes they use signed extending: (size_t)pos was compiled to "movsxd	r10, edx"
-*/
-
 #define DEF_GetHeads(name, v) \
-static void GetHeads ## name(const Byte *p, size_t pos, \
+static void GetHeads ## name(const Byte *p, UInt32 pos, \
 UInt32 *hash, UInt32 hashMask, UInt32 *heads, UInt32 numHeads) { \
 for (; numHeads != 0; numHeads--) { \
-const UInt32 value = (v); p++; *heads++ = (UInt32)pos - hash[value]; hash[value] = (UInt32)(pos++);  } }
+const UInt32 value = (v); p++; *heads++ = pos - hash[value]; hash[value] = pos++;  } }
 
 DEF_GetHeads(2,  (p[0] | ((UInt32)p[1] << 8)) & hashMask)
 DEF_GetHeads(3,  (g_CrcTable[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8)) & hashMask)
@@ -586,7 +579,7 @@ UInt32 * MixMatches2(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
   hash[hash2Value] = lzPos;
 
   if (curMatch2 >= matchMinPos) 
-    if (cur[(size_t)curMatch2 - lzPos] == cur[0])
+    if (cur[(ptrdiff_t)curMatch2 - lzPos] == cur[0])
     {
       *distances++ = 2; 
       *distances++ = lzPos - curMatch2 - 1;
@@ -609,10 +602,10 @@ UInt32 * MixMatches3(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
   hash[kFix3HashSize + hash3Value] = 
     lzPos;
 
-  if (curMatch2 >= matchMinPos && cur[(size_t)curMatch2 - lzPos] == cur[0])
+  if (curMatch2 >= matchMinPos && cur[(ptrdiff_t)curMatch2 - lzPos] == cur[0])
   { 
     distances[1] = lzPos - curMatch2 - 1;
-    if (cur[(size_t)curMatch2 - lzPos + 2] == cur[2])
+    if (cur[(ptrdiff_t)curMatch2 - lzPos + 2] == cur[2])
     {
       distances[0] = 3;
       return distances + 2;
@@ -620,7 +613,7 @@ UInt32 * MixMatches3(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
     distances[0] = 2; 
     distances += 2;
   }
-  if (curMatch3 >= matchMinPos && cur[(size_t)curMatch3 - lzPos] == cur[0])
+  if (curMatch3 >= matchMinPos && cur[(ptrdiff_t)curMatch3 - lzPos] == cur[0])
   { 
     *distances++ = 3; 
     *distances++ = lzPos - curMatch3 - 1; 
@@ -646,21 +639,21 @@ UInt32 *MixMatches4(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
   hash[kFix4HashSize + hash4Value] = 
     lzPos;
 
-  if (curMatch2 >= matchMinPos && cur[(size_t)curMatch2 - lzPos] == cur[0])
+  if (curMatch2 >= matchMinPos && cur[(ptrdiff_t)curMatch2 - lzPos] == cur[0])
   {
     distances[1] = lzPos - curMatch2 - 1;
-    if (cur[(size_t)curMatch2 - lzPos + 2] == cur[2])
+    if (cur[(ptrdiff_t)curMatch2 - lzPos + 2] == cur[2])
     {
-      distances[0] =  (cur[(size_t)curMatch2 - lzPos + 3] == cur[3]) ? 4 : 3;
+      distances[0] =  (cur[(ptrdiff_t)curMatch2 - lzPos + 3] == cur[3]) ? 4 : 3;
       return distances + 2;
     }
     distances[0] = 2;
     distances += 2;
   }
-  if (curMatch3 >= matchMinPos && cur[(size_t)curMatch3 - lzPos] == cur[0])
+  if (curMatch3 >= matchMinPos && cur[(ptrdiff_t)curMatch3 - lzPos] == cur[0])
   {
     distances[1] = lzPos - curMatch3 - 1;
-    if (cur[(size_t)curMatch3 - lzPos + 3] == cur[3])
+    if (cur[(ptrdiff_t)curMatch3 - lzPos + 3] == cur[3])
     {
       distances[0] = 4;
       return distances + 2;
@@ -671,8 +664,8 @@ UInt32 *MixMatches4(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
 
   if (curMatch4 >= matchMinPos)
     if (
-      cur[(size_t)curMatch4 - lzPos] == cur[0] &&
-      cur[(size_t)curMatch4 - lzPos + 3] == cur[3]
+      cur[(ptrdiff_t)curMatch4 - lzPos] == cur[0] &&
+      cur[(ptrdiff_t)curMatch4 - lzPos + 3] == cur[3]
       )
     {
       *distances++ = 4;
diff --git a/C/Compress/Lz/MatchFinderMt.h b/C/Compress/Lz/MatchFinderMt.h
index f9edc18f..e718a09e 100755
--- a/C/Compress/Lz/MatchFinderMt.h
+++ b/C/Compress/Lz/MatchFinderMt.h
@@ -38,7 +38,7 @@ typedef UInt32 * (*Mf_Mix_Matches)(void *p, UInt32 matchMinPos, UInt32 *distance
 /* kMtCacheLineDummy must be >= size_of_CPU_cache_line */
 #define kMtCacheLineDummy 128
 
-typedef void (*Mf_GetHeads)(const Byte *buffer, size_t pos,
+typedef void (*Mf_GetHeads)(const Byte *buffer, UInt32 pos,
   UInt32 *hash, UInt32 hashMask, UInt32 *heads, UInt32 numHeads);
 
 typedef struct _CMatchFinderMt
diff --git a/CPP/7zip/Archive/7z/7zExtract.cpp b/CPP/7zip/Archive/7z/7zExtract.cpp
index 65f9c9eb..42977097 100755
--- a/CPP/7zip/Archive/7z/7zExtract.cpp
+++ b/CPP/7zip/Archive/7z/7zExtract.cpp
@@ -195,7 +195,7 @@ STDMETHODIMP CHandler::Extract(const UInt32* indices, UInt32 numItems,
         0,
         #endif
         startIndex, 
-        &efi.ExtractStatuses, extractCallback, testMode);
+        &efi.ExtractStatuses, extractCallback, testMode, _crcSize != 0);
 
     RINOK(result);
 
diff --git a/CPP/7zip/Archive/7z/7zFolderInStream.cpp b/CPP/7zip/Archive/7z/7zFolderInStream.cpp
index fb1cfd3a..f60a7177 100755
--- a/CPP/7zip/Archive/7z/7zFolderInStream.cpp
+++ b/CPP/7zip/Archive/7z/7zFolderInStream.cpp
@@ -113,13 +113,14 @@ STDMETHODIMP CFolderInStream::Read(void *data, UInt32 size, UInt32 *processedSiz
 STDMETHODIMP CFolderInStream::GetSubStreamSize(UInt64 subStream, UInt64 *value)
 {
   *value = 0;
-  if (subStream < Sizes.Size())
+  int subStreamIndex = (int)subStream;
+  if (subStreamIndex < 0 || subStream > Sizes.Size())
+    return E_FAIL;
+  if (subStreamIndex < Sizes.Size())
   {
-    *value= Sizes[(int)(size_t)subStream];
+    *value= Sizes[subStreamIndex];
     return S_OK;
   }
-  if (subStream > Sizes.Size())
-    return E_FAIL;
   if (!_currentSizeIsDefined)
     return S_FALSE;
   *value = _currentSize;
diff --git a/CPP/7zip/Archive/7z/7zFolderOutStream.cpp b/CPP/7zip/Archive/7z/7zFolderOutStream.cpp
index 93bed3d9..6206ffec 100755
--- a/CPP/7zip/Archive/7z/7zFolderOutStream.cpp
+++ b/CPP/7zip/Archive/7z/7zFolderOutStream.cpp
@@ -19,7 +19,8 @@ HRESULT CFolderOutStream::Init(
     UInt32 startIndex,
     const CBoolVector *extractStatuses, 
     IArchiveExtractCallback *extractCallback,
-    bool testMode)
+    bool testMode,
+    bool checkCrc)
 {
   _archiveDatabase = archiveDatabase;
   _ref2Offset = ref2Offset;
@@ -29,6 +30,8 @@ HRESULT CFolderOutStream::Init(
   _extractCallback = extractCallback;
   _testMode = testMode;
 
+  _checkCrc = checkCrc;
+
   _currentIndex = 0;
   _fileIsOpen = false;
   return WriteEmptyFiles();
@@ -49,7 +52,7 @@ HRESULT CFolderOutStream::OpenFile()
   RINOK(_extractCallback->GetStream(_ref2Offset + index, &realOutStream, askMode));
 
   _outStreamWithHashSpec->SetStream(realOutStream);
-  _outStreamWithHashSpec->Init();
+  _outStreamWithHashSpec->Init(_checkCrc);
   if (askMode == NArchive::NExtract::NAskMode::kExtract &&
       (!realOutStream)) 
   {
@@ -100,7 +103,7 @@ STDMETHODIMP CFolderOutStream::Write(const void *data,
       if (_filePos == fileSize)
       {
         bool digestsAreEqual;
-        if (fileInfo.IsFileCRCDefined)
+        if (fileInfo.IsFileCRCDefined && _checkCrc)
           digestsAreEqual = fileInfo.FileCRC == _outStreamWithHashSpec->GetCRC();
         else
           digestsAreEqual = true;
diff --git a/CPP/7zip/Archive/7z/7zFolderOutStream.h b/CPP/7zip/Archive/7z/7zFolderOutStream.h
index c132c79a..8ca91e64 100755
--- a/CPP/7zip/Archive/7z/7zFolderOutStream.h
+++ b/CPP/7zip/Archive/7z/7zFolderOutStream.h
@@ -36,6 +36,8 @@ private:
   bool _testMode;
 
   bool _fileIsOpen;
+
+  bool _checkCrc;
   UInt64 _filePos;
 
   HRESULT OpenFile();
@@ -47,7 +49,8 @@ public:
       UInt32 startIndex,
       const CBoolVector *extractStatuses, 
       IArchiveExtractCallback *extractCallback,
-      bool testMode);
+      bool testMode,
+      bool checkCrc);
   HRESULT FlushCorrupted(Int32 resultEOperationResult);
   HRESULT WasWritingFinished();
 };
diff --git a/CPP/7zip/Archive/7z/7zHandler.cpp b/CPP/7zip/Archive/7z/7zHandler.cpp
index d5dc8720..bbef1ea5 100755
--- a/CPP/7zip/Archive/7z/7zHandler.cpp
+++ b/CPP/7zip/Archive/7z/7zHandler.cpp
@@ -33,6 +33,8 @@ namespace N7z {
 
 CHandler::CHandler()
 {
+  _crcSize = 4;
+
   #ifdef EXTRACT_ONLY
   #ifdef COMPRESS_MT
   _numThreads = NWindows::NSystem::GetNumberOfProcessors();
diff --git a/CPP/7zip/Archive/7z/7zHandler.h b/CPP/7zip/Archive/7z/7zHandler.h
index 1006f204..ad4df41f 100755
--- a/CPP/7zip/Archive/7z/7zHandler.h
+++ b/CPP/7zip/Archive/7z/7zHandler.h
@@ -110,7 +110,9 @@ private:
   #ifdef COMPRESS_MT
   UInt32 _numThreads;
   #endif
-  
+
+  UInt32 _crcSize;
+
   #else
   
   CRecordVector<CBind> _binds;
diff --git a/CPP/7zip/Archive/Archive2.def b/CPP/7zip/Archive/Archive2.def
index 78ec1dd7..885d39d1 100755
--- a/CPP/7zip/Archive/Archive2.def
+++ b/CPP/7zip/Archive/Archive2.def
@@ -6,3 +6,4 @@ EXPORTS
   CreateObject PRIVATE
   GetNumberOfMethods PRIVATE
   GetMethodProperty PRIVATE
+  SetLargePageMode PRIVATE
diff --git a/CPP/7zip/Archive/Chm/ChmIn.cpp b/CPP/7zip/Archive/Chm/ChmIn.cpp
index 8c56ec91..5e13f54b 100755
--- a/CPP/7zip/Archive/Chm/ChmIn.cpp
+++ b/CPP/7zip/Archive/Chm/ChmIn.cpp
@@ -759,9 +759,23 @@ HRESULT CInArchive::OpenHighLevel(IInStream *inStream, CFilesDatabase &database)
           li.ResetInterval = ReadUInt32();
           li.WindowSize = ReadUInt32();
           li.CacheSize = ReadUInt32();
-          if (li.ResetInterval != 2 && li.ResetInterval != 4)
+          if (
+              li.ResetInterval != 1 && 
+              li.ResetInterval != 2 && 
+              li.ResetInterval != 4 && 
+              li.ResetInterval != 8 && 
+              li.ResetInterval != 16 && 
+              li.ResetInterval != 32 && 
+              li.ResetInterval != 64)
             return S_FALSE;
-          if (li.WindowSize != 2 && li.WindowSize != 4)
+          if (
+              li.WindowSize != 1 && 
+              li.WindowSize != 2 && 
+              li.WindowSize != 4 && 
+              li.WindowSize != 8 && 
+              li.WindowSize != 16 && 
+              li.WindowSize != 32 && 
+              li.WindowSize != 64)
             return S_FALSE;
           numDWORDS -= 5;
           while (numDWORDS-- != 0)
diff --git a/CPP/7zip/Archive/Common/HandlerOut.cpp b/CPP/7zip/Archive/Common/HandlerOut.cpp
index 7c214c3c..0dcf449e 100755
--- a/CPP/7zip/Archive/Common/HandlerOut.cpp
+++ b/CPP/7zip/Archive/Common/HandlerOut.cpp
@@ -468,6 +468,7 @@ void COutHandler::Init()
   _level = 5;
   _autoFilter = true;
   _volumeMode = false;
+  _crcSize = 4;
   InitSolid();
 }
 
@@ -481,6 +482,7 @@ void COutHandler::BeforeSetProperty()
   mainDicSize = 0xFFFFFFFF;
   mainDicMethodIndex = 0xFFFFFFFF;
   minNumber = 0;
+  _crcSize = 4;
 }
 
 HRESULT COutHandler::SetProperty(const wchar_t *nameSpec, const PROPVARIANT &value)
@@ -507,6 +509,13 @@ HRESULT COutHandler::SetProperty(const wchar_t *nameSpec, const PROPVARIANT &val
     return SetSolidSettings(name);
   }
   
+  if (name == L"CRC")
+  {
+    _crcSize = 4;
+    name.Delete(0, 3);
+    return ParsePropValue(name, value, _crcSize);
+  }
+  
   UInt32 number;
   int index = ParseStringToUInt32(name, number);
   UString realName = name.Mid(index);
diff --git a/CPP/7zip/Archive/Common/HandlerOut.h b/CPP/7zip/Archive/Common/HandlerOut.h
index eded0786..ab925cc3 100755
--- a/CPP/7zip/Archive/Common/HandlerOut.h
+++ b/CPP/7zip/Archive/Common/HandlerOut.h
@@ -26,6 +26,8 @@ public:
   UInt32 _numThreads;
   #endif
 
+  UInt32 _crcSize;
+
   CObjectVector<COneMethodInfo> _methods;
   bool _removeSfxBlock;
   
diff --git a/CPP/7zip/Archive/DllExports.cpp b/CPP/7zip/Archive/DllExports.cpp
index 58daedb4..dae2698f 100755
--- a/CPP/7zip/Archive/DllExports.cpp
+++ b/CPP/7zip/Archive/DllExports.cpp
@@ -33,9 +33,6 @@ BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
     #ifndef _UNICODE
     g_IsNT = IsItWindowsNT();
     #endif
-    #if defined(_WIN32) && defined(_7ZIP_LARGE_PAGES)
-    SetLargePageSize();
-    #endif
   }
   return TRUE;
 }
@@ -50,3 +47,10 @@ STDAPI CreateObject(const GUID *clsid, const GUID *iid, void **outObject)
   return CreateArchiver(clsid, iid, outObject);
 }
 
+STDAPI SetLargePageMode()
+{
+  #if defined(_WIN32) && defined(_7ZIP_LARGE_PAGES)
+  SetLargePageSize();
+  #endif
+  return S_OK;
+}
diff --git a/CPP/7zip/Archive/DllExports2.cpp b/CPP/7zip/Archive/DllExports2.cpp
index 216afdb1..d3b15f06 100755
--- a/CPP/7zip/Archive/DllExports2.cpp
+++ b/CPP/7zip/Archive/DllExports2.cpp
@@ -43,9 +43,6 @@ BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
     g_IsNT = IsItWindowsNT();
     #endif
     #endif
-    #if defined(_WIN32) && defined(_7ZIP_LARGE_PAGES)
-    SetLargePageSize();
-    #endif
   }
   return TRUE;
 }
@@ -76,3 +73,10 @@ STDAPI CreateObject(const GUID *clsid, const GUID *iid, void **outObject)
   // COM_TRY_END
 }
 
+STDAPI SetLargePageMode()
+{
+  #if defined(_WIN32) && defined(_7ZIP_LARGE_PAGES)
+  SetLargePageSize();
+  #endif
+  return S_OK;
+}
diff --git a/CPP/7zip/Bundles/SFXSetup/ExtractCallback.cpp b/CPP/7zip/Bundles/SFXSetup/ExtractCallback.cpp
index aaeae468..5d56a9e7 100755
--- a/CPP/7zip/Bundles/SFXSetup/ExtractCallback.cpp
+++ b/CPP/7zip/Bundles/SFXSetup/ExtractCallback.cpp
@@ -240,7 +240,10 @@ STDMETHODIMP CExtractCallbackImp::SetOperationResult(Int32 resultEOperationResul
     }
   }
   if(_outFileStream != NULL)
+  {
     _outFileStreamSpec->SetLastWriteTime(&_processedFileInfo.UTCLastWriteTime);
+    RINOK(_outFileStreamSpec->Close());
+  }
   _outFileStream.Release();
   if (_extractMode)
     NDirectory::MySetFileAttributes(_diskFilePath, _processedFileInfo.Attributes);
diff --git a/CPP/7zip/Common/FileStreams.cpp b/CPP/7zip/Common/FileStreams.cpp
index 27fb0e81..bebcf14c 100755
--- a/CPP/7zip/Common/FileStreams.cpp
+++ b/CPP/7zip/Common/FileStreams.cpp
@@ -145,6 +145,11 @@ STDMETHODIMP CInFileStream::GetSize(UInt64 *size)
 //////////////////////////
 // COutFileStream
 
+HRESULT COutFileStream::Close()
+{
+  return ConvertBoolToHRESULT(File.Close());
+}
+
 STDMETHODIMP COutFileStream::Write(const void *data, UInt32 size, UInt32 *processedSize)
 {
   #ifdef USE_WIN_FILE
diff --git a/CPP/7zip/Common/FileStreams.h b/CPP/7zip/Common/FileStreams.h
index 94cd1daf..715801d8 100755
--- a/CPP/7zip/Common/FileStreams.h
+++ b/CPP/7zip/Common/FileStreams.h
@@ -103,6 +103,8 @@ public:
   }
   #endif
   #endif
+
+  HRESULT Close();
   
   UInt64 ProcessedSize;
 
diff --git a/CPP/7zip/Compress/Deflate/DeflateEncoder.cpp b/CPP/7zip/Compress/Deflate/DeflateEncoder.cpp
index ac68ff35..2f72fded 100755
--- a/CPP/7zip/Compress/Deflate/DeflateEncoder.cpp
+++ b/CPP/7zip/Compress/Deflate/DeflateEncoder.cpp
@@ -282,10 +282,10 @@ NO_INLINE void CCoder::GetMatches()
     {
       UInt32 numAvail = Inline_MatchFinder_GetNumAvailableBytes(&_lzInWindow) + 1;
       const Byte *pby = Inline_MatchFinder_GetPointerToCurrentPos(&_lzInWindow) - 1;
-      UInt32 distance = distanceTmp[numPairs - 1] + 1;
+      const Byte *pby2 = pby - (distanceTmp[numPairs - 1] + 1);
       if (numAvail > m_MatchMaxLen)
         numAvail = m_MatchMaxLen;
-      for (; len < numAvail && pby[len] == pby[(size_t)len - distance]; len++);
+      for (; len < numAvail && pby[len] == pby2[len]; len++);
       m_MatchDistances[i - 1] = (UInt16)len;
     }
   }
diff --git a/CPP/7zip/Compress/LZMA/LZMAEncoder.cpp b/CPP/7zip/Compress/LZMA/LZMAEncoder.cpp
index c2e2acbe..021099d8 100755
--- a/CPP/7zip/Compress/LZMA/LZMAEncoder.cpp
+++ b/CPP/7zip/Compress/LZMA/LZMAEncoder.cpp
@@ -610,15 +610,14 @@ UInt32 CEncoder::GetOptimum(UInt32 position, UInt32 &backRes)
   for(i = 0; i < kNumRepDistances; i++)
   {
     reps[i] = _repDistances[i];
-    UInt32 backOffset = reps[i] + 1;
-    if (data[0] != data[(size_t)0 - backOffset] || data[1] != data[(size_t)1 - backOffset])
+    const Byte *data2 = data - (reps[i] + 1);
+    if (data[0] != data2[0] || data[1] != data2[1])
     {
       repLens[i] = 0;
       continue;
     }
     UInt32 lenTest;
-    for (lenTest = 2; lenTest < numAvailableBytes && 
-        data[lenTest] == data[(size_t)lenTest - backOffset]; lenTest++);
+    for (lenTest = 2; lenTest < numAvailableBytes && data[lenTest] == data2[lenTest]; lenTest++);
     repLens[i] = lenTest;
     if (lenTest > repLens[repMaxIndex])
       repMaxIndex = i;
@@ -639,7 +638,7 @@ UInt32 CEncoder::GetOptimum(UInt32 position, UInt32 &backRes)
     return lenMain;
   }
   Byte currentByte = *data;
-  Byte matchByte = data[(size_t)0 - reps[0] - 1];
+  Byte matchByte = *(data - (reps[0] + 1));
 
   if(lenMain < 2 && currentByte != matchByte && repLens[repMaxIndex] < 2)
   {
@@ -821,13 +820,13 @@ UInt32 CEncoder::GetOptimum(UInt32 position, UInt32 &backRes)
     UInt32 curPrice = curOptimum.Price; 
     const Byte *data = _matchFinder.GetPointerToCurrentPos(_matchFinderObj) - 1;
     const Byte currentByte = *data;
-    const Byte matchByte = data[(size_t)0 - reps[0] - 1];
+    const Byte matchByte = *(data - (reps[0] + 1));
 
     UInt32 posState = (position & _posStateMask);
 
     UInt32 curAnd1Price = curPrice +
         _isMatch[state.Index][posState].GetPrice0() +
-        _literalEncoder.GetSubCoder(position, data[(size_t)0 - 1])->GetPrice(!state.IsCharState(), matchByte, currentByte);
+        _literalEncoder.GetSubCoder(position, *(data - 1))->GetPrice(!state.IsCharState(), matchByte, currentByte);
 
     COptimal &nextOptimum = _optimum[cur + 1];
 
@@ -870,11 +869,10 @@ UInt32 CEncoder::GetOptimum(UInt32 position, UInt32 &backRes)
     if (!nextIsChar && matchByte != currentByte) // speed optimization
     {
       // try Literal + rep0
-      UInt32 backOffset = reps[0] + 1;
+      const Byte *data2 = data - (reps[0] + 1);
       UInt32 limit = MyMin(numAvailableBytesFull, _numFastBytes + 1);
       UInt32 temp;
-      for (temp = 1; temp < limit && 
-          data[temp] == data[(size_t)temp - backOffset]; temp++);
+      for (temp = 1; temp < limit && data[temp] == data2[temp]; temp++);
       UInt32 lenTest2 = temp - 1;
       if (lenTest2 >= 2)
       {
@@ -908,13 +906,11 @@ UInt32 CEncoder::GetOptimum(UInt32 position, UInt32 &backRes)
     for(UInt32 repIndex = 0; repIndex < kNumRepDistances; repIndex++)
     {
       // UInt32 repLen = _matchFinder.GetMatchLen(0 - 1, reps[repIndex], newLen); // test it;
-      UInt32 backOffset = reps[repIndex] + 1;
-      if (data[0] != data[(size_t)0 - backOffset] ||
-          data[1] != data[(size_t)1 - backOffset])
+      const Byte *data2 = data - (reps[repIndex] + 1);
+      if (data[0] != data2[0] || data[1] != data2[1])
         continue;
       UInt32 lenTest;
-      for (lenTest = 2; lenTest < numAvailableBytes && 
-          data[lenTest] == data[(size_t)lenTest - backOffset]; lenTest++);
+      for (lenTest = 2; lenTest < numAvailableBytes && data[lenTest] == data2[lenTest]; lenTest++);
       while(lenEnd < cur + lenTest)
         _optimum[++lenEnd].Price = kIfinityPrice;
       UInt32 lenTestTemp = lenTest;
@@ -941,8 +937,7 @@ UInt32 CEncoder::GetOptimum(UInt32 position, UInt32 &backRes)
         {
           UInt32 lenTest2 = lenTest + 1;
           UInt32 limit = MyMin(numAvailableBytesFull, lenTest2 + _numFastBytes);
-          for (; lenTest2 < limit && 
-              data[lenTest2] == data[(size_t)lenTest2 - backOffset]; lenTest2++);
+          for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++);
           lenTest2 -= lenTest + 1;
           if (lenTest2 >= 2)
           {
@@ -952,8 +947,8 @@ UInt32 CEncoder::GetOptimum(UInt32 position, UInt32 &backRes)
             UInt32 curAndLenCharPrice = 
                 price + _repMatchLenEncoder.GetPrice(lenTest - 2, posState) + 
                 _isMatch[state2.Index][posStateNext].GetPrice0() +
-                _literalEncoder.GetSubCoder(position + lenTest, data[(size_t)lenTest - 1])->GetPrice(
-                true, data[(size_t)lenTest - backOffset], data[lenTest]);
+                _literalEncoder.GetSubCoder(position + lenTest, data[lenTest - 1])->GetPrice(
+                true, data2[lenTest], data[lenTest]);
             state2.UpdateChar();
             posStateNext = (position + lenTest + 1) & _posStateMask;
             UInt32 nextRepMatchPrice = curAndLenCharPrice + 
@@ -1025,11 +1020,10 @@ UInt32 CEncoder::GetOptimum(UInt32 position, UInt32 &backRes)
         if (/*_maxMode && */lenTest == matchDistances[offs])
         {
           // Try Match + Literal + Rep0
-          UInt32 backOffset = curBack + 1;
+          const Byte *data2 = data - (curBack + 1);
           UInt32 lenTest2 = lenTest + 1;
           UInt32 limit = MyMin(numAvailableBytesFull, lenTest2 + _numFastBytes);
-          for (; lenTest2 < limit && 
-              data[lenTest2] == data[(size_t)lenTest2 - backOffset]; lenTest2++);
+          for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++);
           lenTest2 -= lenTest + 1;
           if (lenTest2 >= 2)
           {
@@ -1038,8 +1032,8 @@ UInt32 CEncoder::GetOptimum(UInt32 position, UInt32 &backRes)
             UInt32 posStateNext = (position + lenTest) & _posStateMask;
             UInt32 curAndLenCharPrice = curAndLenPrice + 
                 _isMatch[state2.Index][posStateNext].GetPrice0() +
-                _literalEncoder.GetSubCoder(position + lenTest, data[(size_t)lenTest - 1])->GetPrice( 
-                true, data[(size_t)lenTest - backOffset], data[lenTest]);
+                _literalEncoder.GetSubCoder(position + lenTest, data[lenTest - 1])->GetPrice( 
+                true, data2[lenTest], data[lenTest]);
             state2.UpdateChar();
             posStateNext = (posStateNext + 1) & _posStateMask;
             UInt32 nextRepMatchPrice = curAndLenCharPrice + 
@@ -1105,7 +1099,9 @@ UInt32 CEncoder::ReadMatchDistances(UInt32 &numDistancePairs)
       UInt32 distance = _matchDistances[numDistancePairs - 1] + 1;
       if (numAvail > kMatchMaxLen)
         numAvail = kMatchMaxLen;
-      for (; lenRes < numAvail && pby[lenRes] == pby[(size_t)lenRes - distance]; lenRes++);
+
+      const Byte *pby2 = pby - distance;
+      for (; lenRes < numAvail && pby[lenRes] == pby2[lenRes]; lenRes++);
     }
   }
   _additionalOffset++;
@@ -1141,14 +1137,14 @@ UInt32 CEncoder::GetOptimumFast(UInt32 &backRes)
 
   for(UInt32 i = 0; i < kNumRepDistances; i++)
   {
-    UInt32 backOffset = _repDistances[i] + 1;
-    if (data[0] != data[(size_t)0 - backOffset] || data[1] != data[(size_t)1 - backOffset])
+    const Byte *data2 = data - (_repDistances[i] + 1);
+    if (data[0] != data2[0] || data[1] != data2[1])
     {
       repLens[i] = 0;
       continue;
     }
     UInt32 len;
-    for (len = 2; len < numAvailableBytes && data[len] == data[(size_t)len - backOffset]; len++);
+    for (len = 2; len < numAvailableBytes && data[len] == data2[len]; len++);
     if(len >= _numFastBytes)
     {
       backRes = i;
@@ -1216,14 +1212,14 @@ UInt32 CEncoder::GetOptimumFast(UInt32 &backRes)
     data = _matchFinder.GetPointerToCurrentPos(_matchFinderObj) - 1;
     for(UInt32 i = 0; i < kNumRepDistances; i++)
     {
-      UInt32 backOffset = _repDistances[i] + 1;
-      if (data[1] != data[(size_t)1 - backOffset] || data[2] != data[(size_t)2 - backOffset])
+      const Byte *data2 = data - (_repDistances[i] + 1);
+      if (data[1] != data2[1] || data[2] != data2[2])
       {
         repLens[i] = 0;
         continue;
       }
       UInt32 len;
-      for (len = 2; len < numAvailableBytes && data[len] == data[(size_t)len - backOffset]; len++);
+      for (len = 2; len < numAvailableBytes && data[len] == data2[len]; len++);
       if (len + 1 >= lenMain)
       {
         _longestMatchWasFound = true;
diff --git a/CPP/7zip/Compress/LZMA_Alone/LzmaAlone.cpp b/CPP/7zip/Compress/LZMA_Alone/LzmaAlone.cpp
index 923c014c..0e83f576 100755
--- a/CPP/7zip/Compress/LZMA_Alone/LzmaAlone.cpp
+++ b/CPP/7zip/Compress/LZMA_Alone/LzmaAlone.cpp
@@ -159,7 +159,7 @@ int main2(int n, const char *args[])
   g_IsNT = IsItWindowsNT();
   #endif
 
-  fprintf(stderr, "\nLZMA 4.54 Copyright (c) 1999-2007 Igor Pavlov  2007-09-04\n");
+  fprintf(stderr, "\nLZMA 4.56 Copyright (c) 1999-2007 Igor Pavlov  2007-10-19\n");
 
   if (n == 1)
   {
@@ -276,6 +276,7 @@ int main2(int n, const char *args[])
   }
 
   CMyComPtr<ISequentialOutStream> outStream;
+  COutFileStream *outStreamSpec = NULL;
   if (stdOutMode)
   {
     outStream = new CStdOutFileStream;
@@ -286,7 +287,7 @@ int main2(int n, const char *args[])
     if (paramIndex >= nonSwitchStrings.Size())
       IncorrectCommand();
     const UString &outputName = nonSwitchStrings[paramIndex++]; 
-    COutFileStream *outStreamSpec = new COutFileStream;
+    outStreamSpec = new COutFileStream;
     outStream = outStreamSpec;
     if (!outStreamSpec->Create(GetSystemString(outputName), true))
     {
@@ -368,8 +369,7 @@ int main2(int n, const char *args[])
   UInt64 fileSize;
   if (encodeMode)
   {
-    NCompress::NLZMA::CEncoder *encoderSpec = 
-      new NCompress::NLZMA::CEncoder;
+    NCompress::NLZMA::CEncoder *encoderSpec = new NCompress::NLZMA::CEncoder;
     CMyComPtr<ICompressCoder> encoder = encoderSpec;
 
     if (!dictionaryIsDefined)
@@ -483,8 +483,7 @@ int main2(int n, const char *args[])
   }
   else
   {
-    NCompress::NLZMA::CDecoder *decoderSpec = 
-        new NCompress::NLZMA::CDecoder;
+    NCompress::NLZMA::CDecoder *decoderSpec = new NCompress::NLZMA::CDecoder;
     CMyComPtr<ICompressCoder> decoder = decoderSpec;
     const UInt32 kPropertiesSize = 5;
     Byte properties[kPropertiesSize];
@@ -526,6 +525,14 @@ int main2(int n, const char *args[])
       return 1;
     }   
   }
+  if (outStreamSpec != NULL)
+  {
+    if (outStreamSpec->Close() != S_OK)
+    {
+      fprintf(stderr, "File closing error");
+      return 1;
+    }
+  }
   return 0;
 }
 
diff --git a/CPP/7zip/MyVersion.h b/CPP/7zip/MyVersion.h
index 3d5c5267..f9ba7a3b 100755
--- a/CPP/7zip/MyVersion.h
+++ b/CPP/7zip/MyVersion.h
@@ -1,8 +1,8 @@
 #define MY_VER_MAJOR 4
-#define MY_VER_MINOR 55
+#define MY_VER_MINOR 56
 #define MY_VER_BUILD 0
-#define MY_VERSION "4.55 beta"
-#define MY_7ZIP_VERSION "7-Zip 4.55 beta"
-#define MY_DATE "2007-09-05"
+#define MY_VERSION "4.56 beta"
+#define MY_7ZIP_VERSION "7-Zip 4.56 beta"
+#define MY_DATE "2007-10-24"
 #define MY_COPYRIGHT "Copyright (c) 1999-2007 Igor Pavlov"
 #define MY_VERSION_COPYRIGHT_DATE MY_VERSION "  " MY_COPYRIGHT "  " MY_DATE
diff --git a/CPP/7zip/UI/Agent/AgentOut.cpp b/CPP/7zip/UI/Agent/AgentOut.cpp
index 956b0bbd..4c6ba1a1 100755
--- a/CPP/7zip/UI/Agent/AgentOut.cpp
+++ b/CPP/7zip/UI/Agent/AgentOut.cpp
@@ -299,7 +299,8 @@ STDMETHODIMP CAgent::DoOperation(
     RINOK(CopyBlock(sfxStream, outStream));
   }
 
-  return outArchive->UpdateItems(outStream, updatePairs2.Size(),updateCallback);
+  RINOK(outArchive->UpdateItems(outStream, updatePairs2.Size(),updateCallback));
+  return outStreamSpec->Close();
 }
 
 STDMETHODIMP CAgent::DoOperation2(
@@ -362,7 +363,8 @@ HRESULT CAgent::CommonUpdate(
     return E_FAIL;
   }
   
-  return outArchive->UpdateItems(outStream, numUpdateItems, updateCallback);
+  RINOK(outArchive->UpdateItems(outStream, numUpdateItems, updateCallback));
+  return outStreamSpec->Close();
 }
 
 
diff --git a/CPP/7zip/UI/Client7z/Client7z.cpp b/CPP/7zip/UI/Client7z/Client7z.cpp
index 8d448258..fce1c4f6 100755
--- a/CPP/7zip/UI/Client7z/Client7z.cpp
+++ b/CPP/7zip/UI/Client7z/Client7z.cpp
@@ -79,6 +79,13 @@ void PrintStringLn(const AString &s)
   PrintNewLine();
 }
 
+void PrintError(const AString &s)
+{
+  PrintNewLine();
+  PrintString(s);
+  PrintNewLine();
+}
+
 static HRESULT IsArchiveItemProp(IInArchive *archive, UInt32 index, PROPID propID, bool &result)
 {
   NCOM::CPropVariant prop;
@@ -141,7 +148,7 @@ STDMETHODIMP CArchiveOpenCallback::CryptoGetTextPassword(BSTR *password)
     // You can ask real password here from user
     // Password = GetPassword(OutStream); 
     // PasswordIsDefined = true;
-    PrintStringLn("Password is not defined");
+    PrintError("Password is not defined");
     return E_ABORT;
   }
   CMyComBSTR tempName(Password);
@@ -396,8 +403,12 @@ STDMETHODIMP CArchiveExtractCallback::SetOperationResult(Int32 operationResult)
     }
   }
 
-  if(_outFileStream != NULL && _processedFileInfo.UTCLastWriteTimeIsDefined)
-    _outFileStreamSpec->SetLastWriteTime(&_processedFileInfo.UTCLastWriteTime);
+  if (_outFileStream != NULL)
+  {
+    if (_processedFileInfo.UTCLastWriteTimeIsDefined)
+      _outFileStreamSpec->SetLastWriteTime(&_processedFileInfo.UTCLastWriteTime);
+    RINOK(_outFileStreamSpec->Close());
+  }
   _outFileStream.Release();
   if (_extractMode && _processedFileInfo.AttributesAreDefined)
     NFile::NDirectory::MySetFileAttributes(_diskFilePath, _processedFileInfo.Attributes);
@@ -413,7 +424,7 @@ STDMETHODIMP CArchiveExtractCallback::CryptoGetTextPassword(BSTR *password)
     // You can ask real password here from user
     // Password = GetPassword(OutStream); 
     // PasswordIsDefined = true;
-    PrintStringLn("Password is not defined");
+    PrintError("Password is not defined");
     return E_ABORT;
   }
   CMyComBSTR tempName(Password);
@@ -603,7 +614,7 @@ STDMETHODIMP CArchiveUpdateCallback::GetStream(UInt32 index, ISequentialInStream
       // if (systemError == ERROR_SHARING_VIOLATION)
       {
         PrintNewLine();
-        PrintStringLn("WARNING: can't open file");
+        PrintError("WARNING: can't open file");
         // PrintString(NError::MyFormatMessageW(systemError));
         return S_FALSE;
       }
@@ -658,7 +669,7 @@ STDMETHODIMP CArchiveUpdateCallback::CryptoGetTextPassword2(Int32 *passwordIsDef
       // You can ask real password here from user
       // Password = GetPassword(OutStream); 
       // PasswordIsDefined = true;
-      PrintStringLn("Password is not defined");
+      PrintError("Password is not defined");
       return E_ABORT;
     }
   }
@@ -695,13 +706,13 @@ main(int argc, char* argv[])
   NWindows::NDLL::CLibrary library;
   if (!library.Load(TEXT(kDllName)))
   {
-    PrintStringLn("Can not load library");
+    PrintError("Can not load library");
     return 1;
   }
   CreateObjectFunc createObjectFunc = (CreateObjectFunc)library.GetProcAddress("CreateObject");
   if (createObjectFunc == 0)
   {
-    PrintStringLn("Can not get CreateObject");
+    PrintError("Can not get CreateObject");
     return 1;
   }
 
@@ -742,14 +753,14 @@ main(int argc, char* argv[])
     CMyComPtr<IOutStream> outFileStream = outFileStreamSpec;
     if (!outFileStreamSpec->Create(archiveName, false))
     {
-      PrintStringLn("can't create archive file");
+      PrintError("can't create archive file");
       return 1;
     }
 
     CMyComPtr<IOutArchive> outArchive;
     if (createObjectFunc(&CLSID_CFormat7z, &IID_IOutArchive, (void **)&outArchive) != S_OK)
     {
-      PrintStringLn("Can not get class object");
+      PrintError("Can not get class object");
       return 1;
     }
 
@@ -763,7 +774,7 @@ main(int argc, char* argv[])
     updateCallbackSpec->Finilize();
     if (result != S_OK)
     {
-      PrintStringLn("Update Error");
+      PrintError("Update Error");
       return 1;
     }
     for (i = 0; i < updateCallbackSpec->FailedFiles.Size(); i++)
@@ -789,14 +800,14 @@ main(int argc, char* argv[])
       listCommand = false;
     else
     {
-      PrintStringLn("incorrect command");
+      PrintError("incorrect command");
       return 1;
     }
   
     CMyComPtr<IInArchive> archive;
     if (createObjectFunc(&CLSID_CFormat7z, &IID_IInArchive, (void **)&archive) != S_OK)
     {
-      PrintStringLn("Can not get class object");
+      PrintError("Can not get class object");
       return 1;
     }
     
@@ -805,7 +816,7 @@ main(int argc, char* argv[])
     
     if (!fileSpec->Open(archiveName))
     {
-      PrintStringLn("Can not open archive file");
+      PrintError("Can not open archive file");
       return 1;
     }
 
@@ -818,7 +829,7 @@ main(int argc, char* argv[])
       
       if (archive->Open(file, 0, openCallback) != S_OK)
       {
-        PrintStringLn("Can not open archive");
+        PrintError("Can not open archive");
         return 1;
       }
     }
@@ -857,7 +868,12 @@ main(int argc, char* argv[])
       extractCallbackSpec->PasswordIsDefined = false;
       // extractCallbackSpec->PasswordIsDefined = true;
       // extractCallbackSpec->Password = L"1";
-      archive->Extract(NULL, (UInt32)(Int32)(-1), false, extractCallback);
+      HRESULT result = archive->Extract(NULL, (UInt32)(Int32)(-1), false, extractCallback);
+      if (result != S_OK)
+      {
+        PrintError("Extract Error");
+        return 1;
+      }
     }
   }
   return 0;
diff --git a/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp b/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp
index 9e679e57..c3913e1c 100755
--- a/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp
+++ b/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp
@@ -434,6 +434,7 @@ STDMETHODIMP CArchiveExtractCallback::SetOperationResult(Int32 operationResult)
         (WriteAccessed && _processedFileInfo.IsLastAccessTimeDefined) ? &_processedFileInfo.LastAccessTime : NULL, 
         (WriteModified && _processedFileInfo.IsLastWriteTimeDefined) ? &_processedFileInfo.LastWriteTime : &_utcLastWriteTimeDefault);
     _curSize = _outFileStreamSpec->ProcessedSize;
+    RINOK(_outFileStreamSpec->Close());
     _outFileStream.Release();
   }
   UnpackSize += _curSize;
diff --git a/CPP/7zip/UI/Common/LoadCodecs.cpp b/CPP/7zip/UI/Common/LoadCodecs.cpp
index a6c97aed..087340a1 100755
--- a/CPP/7zip/UI/Common/LoadCodecs.cpp
+++ b/CPP/7zip/UI/Common/LoadCodecs.cpp
@@ -93,7 +93,8 @@ typedef UInt32 (WINAPI *GetNumberOfMethodsFunc)(UInt32 *numMethods);
 typedef UInt32 (WINAPI *GetNumberOfFormatsFunc)(UInt32 *numFormats);
 typedef UInt32 (WINAPI *GetHandlerPropertyFunc)(PROPID propID, PROPVARIANT *value);
 typedef UInt32 (WINAPI *GetHandlerPropertyFunc2)(UInt32 index, PROPID propID, PROPVARIANT *value);
-typedef UINT32 (WINAPI *CreateObjectFunc)(const GUID *clsID, const GUID *iid, void **outObject);
+typedef UInt32 (WINAPI *CreateObjectFunc)(const GUID *clsID, const GUID *iid, void **outObject);
+typedef UInt32 (WINAPI *SetLargePageModeFunc)();
 
 
 static HRESULT GetCoderClass(GetMethodPropertyFunc getMethodProperty, UInt32 index, 
@@ -332,6 +333,13 @@ int CCodecLib::FindIconIndex(const UString &ext) const
 }
 #endif
 
+#ifdef _7ZIP_LARGE_PAGES
+extern "C" 
+{
+  extern SIZE_T g_LargePageSize;
+}
+#endif
+
 HRESULT CCodecs::LoadDll(const CSysString &dllPath)
 {
   {
@@ -351,6 +359,16 @@ HRESULT CCodecs::LoadDll(const CSysString &dllPath)
     #ifdef NEW_FOLDER_INTERFACE
     lib.LoadIcons();
     #endif
+
+    #ifdef _7ZIP_LARGE_PAGES
+    if (g_LargePageSize != 0)
+    {
+      SetLargePageModeFunc setLargePageMode = (SetLargePageModeFunc)lib.Lib.GetProcAddress("SetLargePageMode");
+      if (setLargePageMode != 0)
+        setLargePageMode();
+    }
+    #endif
+
     lib.CreateObject = (CreateObjectFunc)lib.Lib.GetProcAddress("CreateObject");
     if (lib.CreateObject != 0)
     {
diff --git a/CPP/7zip/UI/Common/Update.cpp b/CPP/7zip/UI/Common/Update.cpp
index e4857225..ec5ebc80 100755
--- a/CPP/7zip/UI/Common/Update.cpp
+++ b/CPP/7zip/UI/Common/Update.cpp
@@ -67,6 +67,7 @@ class COutMultiVolStream:
 
   struct CSubStreamInfo
   {
+    COutFileStream *StreamSpec;
     CMyComPtr<IOutStream> Stream;
     UString Name;
     UInt64 Pos;
@@ -87,6 +88,8 @@ public:
     _length = 0;
   }
 
+  HRESULT Close(); 
+
   MY_UNKNOWN_IMP1(IOutStream)
 
   STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
@@ -96,6 +99,22 @@ public:
 
 // static NSynchronization::CCriticalSection g_TempPathsCS;
 
+HRESULT COutMultiVolStream::Close()
+{
+  HRESULT res = S_OK;
+  for (int i = 0; i < Streams.Size(); i++)
+  {
+    CSubStreamInfo &s = Streams[i];
+    if (s.StreamSpec)
+    {
+      HRESULT res2 = s.StreamSpec->Close();
+      if (res2 != S_OK)
+        res = res2;
+    }
+  }
+  return res;
+}
+
 STDMETHODIMP COutMultiVolStream::Write(const void *data, UInt32 size, UInt32 *processedSize)
 {
   if(processedSize != NULL)
@@ -112,9 +131,9 @@ STDMETHODIMP COutMultiVolStream::Write(const void *data, UInt32 size, UInt32 *pr
       while (res.Length() < 3)
         res = UString(L'0') + res;
       UString name = Prefix + res;
-      COutFileStream *streamSpec = new COutFileStream;
-      subStream.Stream = streamSpec;
-      if(!streamSpec->Create(name, false))
+      subStream.StreamSpec = new COutFileStream;
+      subStream.Stream = subStream.StreamSpec;
+      if(!subStream.StreamSpec->Create(name, false))
         return ::GetLastError();
       {
         // NSynchronization::CCriticalSectionLock lock(g_TempPathsCS);
@@ -362,13 +381,17 @@ static HRESULT Compress(
       throw 1417161;
     NFile::NDirectory::CreateComplexDirectory(resultPath.Left(pos));
   }
+
+  COutFileStream *outStreamSpec = NULL;
+  COutMultiVolStream *volStreamSpec = NULL;
+
   if (volumesSizes.Size() == 0)
   {
     if (stdOutMode)
       outStream = new CStdOutFileStream;
     else
     {
-      COutFileStream *outStreamSpec = new COutFileStream;
+      outStreamSpec = new COutFileStream;
       outStream = outStreamSpec;
       bool isOK = false;
       UString realPath;
@@ -410,7 +433,7 @@ static HRESULT Compress(
   {
     if (stdOutMode)
       return E_FAIL;
-    COutMultiVolStream *volStreamSpec = new COutMultiVolStream;
+    volStreamSpec = new COutMultiVolStream;
     outStream = volStreamSpec;
     volStreamSpec->Sizes = volumesSizes;
     volStreamSpec->Prefix = archivePath.GetFinalPath() + UString(L".");
@@ -440,11 +463,12 @@ static HRESULT Compress(
     }
 
     CMyComPtr<ISequentialOutStream> sfxOutStream;
+    COutFileStream *outStreamSpec = NULL;
     if (volumesSizes.Size() == 0)
       sfxOutStream = outStream;
     else
     {
-      COutFileStream *outStreamSpec = new COutFileStream;
+      outStreamSpec = new COutFileStream;
       sfxOutStream = outStreamSpec;
       UString realPath = archivePath.GetFinalPath();
       if (!outStreamSpec->Create(realPath, false))
@@ -456,10 +480,19 @@ static HRESULT Compress(
       }
     }
     RINOK(CopyBlock(sfxStream, sfxOutStream));
+    if (outStreamSpec)
+    {
+      RINOK(outStreamSpec->Close());
+    }
   }
 
   HRESULT result = outArchive->UpdateItems(outStream, updatePairs2.Size(), updateCallback);
   callback->Finilize();
+  RINOK(result);
+  if (outStreamSpec)
+    result = outStreamSpec->Close();
+  else if (volStreamSpec)
+    result = volStreamSpec->Close();
   return result;
 }
 
diff --git a/CPP/7zip/UI/Console/Main.cpp b/CPP/7zip/UI/Console/Main.cpp
index bbee32e9..de496530 100755
--- a/CPP/7zip/UI/Console/Main.cpp
+++ b/CPP/7zip/UI/Console/Main.cpp
@@ -407,15 +407,9 @@ int Main2(
           result = E_FAIL;
       }
 
-      stdStream << endl << endl << "Total:" << endl;
+      stdStream << endl;
       if (ecs->NumArchives > 1)
         stdStream << "Archives: " << ecs->NumArchives << endl;
-      {
-        stdStream << "Folders: " << stat.NumFolders << endl;
-        stdStream << "Files: " << stat.NumFiles << endl;
-        stdStream << "Size: " << stat.UnpackSize << endl;
-        stdStream << "Compressed: " << stat.PackSize << endl;
-      }
       if (ecs->NumArchiveErrors != 0 || ecs->NumFileErrors != 0)
       {
         if (ecs->NumArchives > 1)
@@ -432,6 +426,13 @@ int Main2(
       }
       if (result != S_OK)
         throw CSystemException(result);
+      if (stat.NumFolders != 0)
+        stdStream << "Folders: " << stat.NumFolders << endl;
+      if (stat.NumFiles != 1 || stat.NumFolders != 0)
+          stdStream << "Files: " << stat.NumFiles << endl;
+      stdStream 
+           << "Size:       " << stat.UnpackSize << endl
+           << "Compressed: " << stat.PackSize << endl;
     }
     else
     {
diff --git a/CPP/7zip/UI/FileManager/FSFolder.cpp b/CPP/7zip/UI/FileManager/FSFolder.cpp
index f6994066..aeb3b333 100755
--- a/CPP/7zip/UI/FileManager/FSFolder.cpp
+++ b/CPP/7zip/UI/FileManager/FSFolder.cpp
@@ -185,7 +185,6 @@ bool CFSFolder::LoadComments()
   file.Read(p, (UInt32)length, processedSize);
   p[length] = 0;
   s.ReleaseBuffer();
-  s.Replace("\r\n", "\n");
   if (processedSize != length)
     return false;
   file.Close();
@@ -218,7 +217,6 @@ bool CFSFolder::SaveComments()
     Byte bom [] = { 0xEF, 0xBB, 0xBF, 0x0D, 0x0A };
     file.Write(bom , sizeof(bom), processedSize);
   }
-  utfString.Replace("\n", "\r\n");
   file.Write(utfString, utfString.Length(), processedSize);
   _commentsAreLoaded = false;
   return true;
diff --git a/CPP/7zip/UI/FileManager/ProgressDialog2.rc b/CPP/7zip/UI/FileManager/ProgressDialog2.rc
index 5818dfb3..d505033f 100755
--- a/CPP/7zip/UI/FileManager/ProgressDialog2.rc
+++ b/CPP/7zip/UI/FileManager/ProgressDialog2.rc
@@ -1,7 +1,7 @@
 #include "ProgressDialog2Res.h"
 #include "../../GuiCommon.rc"
 
-#define xSize2 300
+#define xSize2 320
 #define ySize2 98
 
 #define xSize (xSize2 + marg + marg)
@@ -18,7 +18,7 @@
 
 #define x0Size 90
 #define x1 (marg + x0Size)
-#define x1Size 40
+#define x1Size 70
 
 #define x3Size 40
 #define x3 (xSize - marg - x3Size)
diff --git a/CPP/7zip/UI/FileManager/TextPairs.cpp b/CPP/7zip/UI/FileManager/TextPairs.cpp
index 76c97b8c..a149fe37 100755
--- a/CPP/7zip/UI/FileManager/TextPairs.cpp
+++ b/CPP/7zip/UI/FileManager/TextPairs.cpp
@@ -22,6 +22,11 @@ static bool IsSeparatorChar(wchar_t c)
   return (c == kSpaceChar || c == kTabChar);
 }
 
+void RemoveCr(UString &s)
+{
+  s.Replace(L"\x0D", L"");
+}
+
 static UString GetIDString(const wchar_t *srcString, int &finishPos)
 {
   UString result;
@@ -42,6 +47,7 @@ static UString GetIDString(const wchar_t *srcString, int &finishPos)
       result += c;
   }
   result.Trim();
+  RemoveCr(result);
   return result;
 }
 
@@ -59,34 +65,28 @@ static UString GetValueString(const wchar_t *srcString, int &finishPos)
     result += c;
   }
   result.Trim();
+  RemoveCr(result);
   return result;
 }
 
 static bool GetTextPairs(const UString &srcString, CObjectVector<CTextPair> &pairs)
 {
   pairs.Clear();
-  UString srcString2 = srcString;
-  srcString2.Replace(L"\x0D", L"");
-
-  pairs.Clear();
   int pos = 0;
   
-  /////////////////////
-  // read strings
-
-  if (srcString2.Length() > 0)
+  if (srcString.Length() > 0)
   {
-    if (srcString2[0] == kBOM)
+    if (srcString[0] == kBOM)
       pos++;
   }
-  while (pos < srcString2.Length())
+  while (pos < srcString.Length())
   {
     int finishPos;
-    UString id = GetIDString((const wchar_t *)srcString2 + pos, finishPos);
+    UString id = GetIDString((const wchar_t *)srcString + pos, finishPos);
     pos += finishPos;
     if (id.IsEmpty())
       continue;
-    UString value = GetValueString((const wchar_t *)srcString2 + pos, finishPos);
+    UString value = GetValueString((const wchar_t *)srcString + pos, finishPos);
     pos += finishPos;
     if (!id.IsEmpty())
     {
@@ -195,7 +195,7 @@ bool CPairsStorage::ReadFromString(const UString &text)
     Sort();
   else
     Pairs.Clear();
-  return  result;
+  return result;
 }
 
 void CPairsStorage::SaveToString(UString &text)
@@ -211,6 +211,7 @@ void CPairsStorage::SaveToString(UString &text)
       text += L'\"';
     text += L' ';
     text += pair.Value;
+    text += L'\x0D';
     text += L'\n';
   }
 }
diff --git a/CPP/Common/C_FileIO.cpp b/CPP/Common/C_FileIO.cpp
index 28a1378c..3c7f82d9 100755
--- a/CPP/Common/C_FileIO.cpp
+++ b/CPP/Common/C_FileIO.cpp
@@ -75,6 +75,11 @@ bool COutFile::Create(const char *name, bool createAlways)
   return OpenBinary(name, O_CREAT | O_EXCL | O_WRONLY);
 }
 
+bool COutFile::Open(const char *name, DWORD creationDisposition)
+{
+  return Create(name, false);
+}
+
 ssize_t COutFile::Write(const void *data, size_t size)
 {
   return write(_handle, data, size);
diff --git a/CPP/Common/C_FileIO.h b/CPP/Common/C_FileIO.h
index 29378dfa..27aa5686 100755
--- a/CPP/Common/C_FileIO.h
+++ b/CPP/Common/C_FileIO.h
@@ -38,6 +38,7 @@ class COutFile: public CFileBase
 {
 public:
   bool Create(const char *name, bool createAlways);
+  bool Open(const char *name, DWORD creationDisposition);
   ssize_t Write(const void *data, size_t size);
 };
 
diff --git a/DOC/7zip.nsi b/DOC/7zip.nsi
index cad0426c..f70c5a9e 100755
--- a/DOC/7zip.nsi
+++ b/DOC/7zip.nsi
@@ -2,7 +2,7 @@
 ;Defines
 
 !define VERSION_MAJOR 4
-!define VERSION_MINOR 55
+!define VERSION_MINOR 56
 !define VERSION_POSTFIX_FULL " beta"
 !ifdef WIN64
 !ifdef IA64
diff --git a/DOC/7zip.wxs b/DOC/7zip.wxs
index 00f37dce..7579abd9 100755
--- a/DOC/7zip.wxs
+++ b/DOC/7zip.wxs
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 
 <?define VerMajor = "4" ?>
-<?define VerMinor = "55" ?>
+<?define VerMinor = "56" ?>
 <?define VerBuild = "00" ?>
 <?define MmVer = "$(var.VerMajor).$(var.VerMinor)" ?>
 <?define MmHex = "0$(var.VerMajor)$(var.VerMinor)" ?>
diff --git a/DOC/Methods.txt b/DOC/Methods.txt
index 4cec657d..e6156690 100755
--- a/DOC/Methods.txt
+++ b/DOC/Methods.txt
@@ -1,4 +1,4 @@
-7-Zip method IDs (4.45)
+7-Zip method IDs (4.56)
 -----------------------
 
 Each compression or crypto method in 7z has unique binary value (ID).
@@ -57,6 +57,9 @@ List of defined IDs
    04 - PPMD
       01 - Version
 
+   7F -
+      01 - experimental methods.
+
    80 - reserved for independent developers
 
    E0 - Random IDs
diff --git a/DOC/history.txt b/DOC/history.txt
index d166d255..a76b7ec0 100755
--- a/DOC/history.txt
+++ b/DOC/history.txt
@@ -1,6 +1,13 @@
 Sources history of the 7-Zip
 ----------------------------
 
+  Version 4.56 beta           2007-09-13
+  --------------------------------------
+   - some fixes in LZ encoder (LZMA and Deflate) code.
+     size_t was replaces to ptrdiff_t.
+     size_t version worked incorrectly with some compilers.
+
+     
   Version 4.46 beta           2007-05-25
   --------------------------------------
    - CPP Synchronization objects now return HRes (error code) instead of bool.
diff --git a/DOC/readme.txt b/DOC/readme.txt
index 995b3088..6cd50495 100755
--- a/DOC/readme.txt
+++ b/DOC/readme.txt
@@ -1,4 +1,4 @@
-7-Zip 4.55 Sources
+7-Zip 4.56 Sources
 ------------------
 
 7-Zip is a file archiver for Windows 95/98/ME/NT/2000/2003/XP/Vista. 
@@ -133,7 +133,11 @@ Windows           Win32 wrappers
     SFXCon        7zCon.sfx: Console 7z SFX module
     SFXWin        7z.sfx: Windows 7z SFX module
     SFXSetup      7zS.sfx: Windows 7z SFX module for Installers
-    Format7z      7za.dll: Standalone version of 7z.dll
+    Format7z            7za.dll:  .7z support
+    Format7zExtract     7zxa.dll: .7z support, extracting only
+    Format7zR           7zr.dll:  .7z support, LZMA/BCJ* only
+    Format7zExtractR    7zxr.dll: .7z support, LZMA/BCJ* only, extracting only
+    Format7zF           7z.dll:   all formats
 
   UI
   --