Unzip a zip file query

hi,

i am writing a windows app, coding in C for Win32, and need to extract a particular file from within a zip file.

is there a way to do this programatically? i could not find an api for doing the same in MSDN

i am using MS VC++ .Net 2003

thanks for any tips you can provide

[283 byte] By [VCProgrammer] at [2008-1-4]

«« Handles, arrays and dereferencing in C++
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# 1

i know you can do it in .Net 3.0 using the support for packaging in system.IO.Packaging namespace(Windowbase.dll), precisely ZipPackage class.
However, you have to install the .NET 3.0 framework. hope this helped.

bruno_1 at 2007-10-11 >

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# 2

thanks bruno_1.

would doing this mean that on a system where the app needs to be run, .net frmwk 3.0 would need to be installed?

VCProgrammer at 2007-10-11 >

# 3

Yes i guess, but anyway .Net doesn't support Zip Packaging before .net 3.0 (there was only support for GZIP), so there will be no other solution. I don't know if you can work around by installing only the needed DLL (windowbase.dll), it is only 1.1 MB, worth tr it?
Don't worry about installing the .NET 3.0, it just add and doesn't modify, so everything will work on it.
Hope this help

bruno_1 at 2007-10-11 >

# 4

bruno_1 wrote:

Yes i guess, but anyway .Net doesn't support Zip Packaging before .net 3.0 (there was only support for GZIP), so there will be no other solution. I don't know if you can work around by installing only the needed DLL (windowbase.dll), it is only 1.1 MB, worth tr it?
Don't worry about installing the .NET 3.0, it just add and doesn't modify, so everything will work on it.
Hope this help

Thanks to bruno_1 for replying to my original question.

I later thought that I would not want to 'force' and end user to have .net framework 3.0. So, for anyone else who wants not to use .net framework, have a look at zlib ( http://www.zlib.net/ ).

- vc programmer

VCProgrammer at 2007-10-11 >

# 5

Your customers will end up with the .NET 3.0 runtime at one point or another anyway, so why bother dancing around it? (Think Vista). When I started working on my .NET 2.0 project, there a lot of hesitant people. Oh well, now that the project is finally done, .NET 2.0 is no big deal. But if you insist on not having users get .NET 3.0 runtime, then check out the Visual J# solution - you can use vjslib in C# or C++ or any place else you want. Sorry, I don't remember the link for the example.

Kevin8264 at 2007-10-11 >

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