.Z Unix Compress and Uncompress

Download Chilkat 32-bit Zip ActiveX (.msi) (includes objects for .zip, .gz, .bz2, and .Z)

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Visual Basic 6.0 example to compress and uncompress Unix .Z compress format files.

    ' Add a reference to the Chilkat UnixCompress component in your VB6 project.
    ' The UnixCompress component is included in the "Chilkat Zip" license
    Dim z As New UnixCompress
    z.UnlockComponent "anything for 30-day trial"
    
    ' The Unix compress file format is not an archive that contains many
    ' files, such as .zip or .tar.  It is a file format that compresses
    ' a single file.
    fname = "test.txt"
    
    ' Compress the file, creating an output file with the original
    ' filename + ".Z"
    z.CompressFile fname, fname & ".Z"
    
    ' To uncompress:
    z.UncompressFile fname & ".Z", "uncompressed.txt"