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Asked: 2026-05-11T01:13:14+00:00

I am actually trying to start a process for winzip and zip a folder.

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I am actually trying to start a process for winzip and zip a folder. This i am doing using the below code in vb.

Dim startInfo As New System.Diagnostics.ProcessStartInfo Dim pStart As New System.Diagnostics.Process Dim tempFileName As String Try     startInfo = New System.Diagnostics.ProcessStartInfo( _     "c:\Program Files\WinZip\WINZIP32.EXE")     startInfo.Arguments = " -a -r ""c:\test.zip"" c:\test"     startInfo.UseShellExecute = False     startInfo.WindowStyle = Diagnostics.ProcessWindowStyle.Normal      pStart.StartInfo = startInfo     'startInfo.WorkingDirectory = "c:\Program Files\WinZip"     'startInfo.FileName = "WINZIP32.EXE"     pStart.Start()     pStart.WaitForExit()      Catch ex As Exception     Throw End Try

This works fine when it’s put in a button click event of a windows application. But when the same is done in a button click event of a web application I can see the process is started in the task manager of the machine. But its doesn’t zip nor does it close the application nor does it pop up its winzip ui…. But in very few machines this does work fine. In most of the machine i am facing the problem and also able to reproduce the problem consistently…

But a similar thing if i try doing using 7z zip, it does work fine form a web application itself…

Is there a workaround for this process?

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1 Answer

  1. I believe that the .Net framework has built in zip capabilities. I would try using those first. Your zip program probably isn’t running because of permissions on the web server.

    Edit

    I just checked and there seems to be limited zip support in System.IO.Compression. But according to this discussion, it might not be what you need. That discussion however, mentions an article called ‘Decompress Zip files with Windows Shell API and C#‘.

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