Index: src/libchcore/TOverlappedWriterFB.cpp
===================================================================
diff -u -N -racd7bcfa7355db4a0d9af99a1bb99d685810d790 -r980c1a0de537813728871676200a0960410b11fb
--- src/libchcore/TOverlappedWriterFB.cpp	(.../TOverlappedWriterFB.cpp)	(revision acd7bcfa7355db4a0d9af99a1bb99d685810d790)
+++ src/libchcore/TOverlappedWriterFB.cpp	(.../TOverlappedWriterFB.cpp)	(revision 980c1a0de537813728871676200a0960410b11fb)
@@ -56,6 +56,12 @@
 		if(!pBuffer)
 			throw TCoreException(eErr_InternalProblem, L"Write was possible, but no buffer is available", LOCATION);
 
+		if(m_bReleaseMode)
+		{
+			m_spEmptyBuffers->Push(pBuffer);
+			return TSubTaskBase::eSubResult_Continue;
+		}
+
 		bool bSkip = false;
 		TSubTaskBase::ESubOperationResult eResult = m_spDstFile->WriteFileFB(*pBuffer, bSkip);
 		if(eResult != TSubTaskBase::eSubResult_Continue)
@@ -82,6 +88,12 @@
 		if(!pBuffer)
 			throw TCoreException(eErr_InternalProblem, L"Failed to retrieve write failed buffer", LOCATION);
 
+		if(m_bReleaseMode)
+		{
+			m_spEmptyBuffers->Push(pBuffer);
+			return TSubTaskBase::eSubResult_Continue;
+		}
+
 		bool bSkip = false;
 		TSubTaskBase::ESubOperationResult eResult = m_spDstFile->HandleWriteError(*pBuffer, bSkip);
 		if(eResult == TSubTaskBase::eSubResult_Retry)
@@ -110,6 +122,18 @@
 		if(!pBuffer)
 			throw TCoreException(eErr_InternalProblem, L"Write finished was possible, but no buffer is available", LOCATION);
 
+		file_size_t fsWritten = pBuffer->GetRealDataSize();
+
+		if(m_bReleaseMode)
+		{
+			AdjustProcessedSize(fsWritten);
+
+			m_spEmptyBuffers->Push(pBuffer);
+			bProcessedFlag = pBuffer->IsLastPart() && (pBuffer->GetBytesTransferred() == fsWritten);
+
+			return TSubTaskBase::eSubResult_Continue;
+		}
+
 		TSubTaskBase::ESubOperationResult eResult = TSubTaskBase::eSubResult_Continue;
 		if(pBuffer->IsLastPart())
 		{
@@ -133,8 +157,6 @@
 			}
 		}
 
-		file_size_t fsWritten = pBuffer->GetRealDataSize();
-
 		// in case we read past the original eof, try to get new file size from filesystem
 		AdjustProcessedSize(fsWritten);