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58 lines
2.8 KiB
Plaintext
58 lines
2.8 KiB
Plaintext
On Windows open this file in WordPad.
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Contents of the "windll/csharp" sub-archive
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This directory contains Visual C Sharp (C#) sample project for
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using the unzip32.dll library. This project was generously donated
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by Adrian Maull. The Zip source archive contains a corresponding
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project for using the zip32.dll library.
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These sample projects are distributed as part of the Info-ZIP distribution
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under the Info-ZIP license.
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Note that the files may be saved in "UNIX LF" format with carriage returns
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stripped. These may need to be restored before the project can be successfully
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used.
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The project is based on .NET Framework 1.1. It was contributed
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to the Info-Zip project April 2005. If you have questions or comments,
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contact us at www.Info-ZIP.org or for specific questions about these
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projects contact Adrian Maull directly at adrian.maull@sprintpcs.com.
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See UnZip.cs for more detailed information about the project. Currently
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the sample project has some bugs as noted in the above file.
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The original code has been adapted to the modified WinDLL interface of
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UnZip 6, using Visual C# 2005 (.Net Framework 2.0) and a unzip32.dll compiled
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by Visual C++ 6.0. The provided project file is still in the format for
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Visual Studio 7.1 (VS .Net 2003, .Net 1.1). But the code of the project
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can be used with newer Visual Studio versions (2005 = 8.0 or 2008 = 9.0);
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only the project file gets (irreversibly) converted to the newer Visual
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Studio format when first opened.
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However, this project is not tested throughoutly by us at this time.
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Note on using Visual Studio C# 2005, 2008 (or newer?):
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The UnZip maintainer was unsuccessful to run the C# sample code using
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Visual Studio 2005 or 2008 together with an unzip32.dll compiled with
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the same Visual Studio version in default configuration (unzip32.dll linked
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against the DLL version of the C runtime library). The C# program failed
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to load the unzip32.dll because of an "OS loader lock" conflict. This conflict
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should only show up when loading "mixed mode" dll that contain both managed
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and unmanaged code. So, it cannot be caused by the "pure native code"
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unzip32.dll directly, which contains nothing dangerous in its DLLMain()
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function. It seems to be caused by the new "side-by-side" C runtime dlls
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(msvcr80.dll or msvcr90.dll being loaded multiple times by a .NET application
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that uses msvcr??-linked native dlls).
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To fix this issue, one of the following work-arounds could be used:
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a) use an unzip32.dll that was linked against the system msvcrt.dll (the
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"old" MSVC 6.0 runtime) that is a core system component of all Windows
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versions from Windows 98/Windows ME and Windows 2000 and newer (at least
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up to Windows Vista/Windows Server 2008),
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or
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b) use a statically linked variant of unzip32.dll (see the option DLLSTANDALONE
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in the MSC Makefile for Win32 executables, "win32/Makefile").
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Ed Gordon, Christian Spieler
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2009/01/17
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