GZip and .Z Compress from Memory

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

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

Visual Basic example to create .Z and .gz files from the contents of a string variable.

    ' Create .gz and .Z files from in-memory data.
    
    ' First, create a big string to be compressed.
    s = ""
    For i = 0 To 100
        s = s + "Hello World!" + vbCrLf
    Next
    
    ' Create a .Z Unix compress file.
    Dim z As New UnixCompress
    z.UnlockComponent "anything for 30-day trial"
    z.CompressStringToFile s, "windows-1252", "helloWorld.txt.Z"
    
    ' Create a .gz GZip file.
    Dim gzip As New gzip
    gzip.UnlockComponent "anything for 30-day trial"
    gzip.CompressStringToFile s, "windows-1252", "helloWorld.txt.gz"
    
    ' Compress in-memory binary data to .gz and .Z files.
    Dim wordDocument As Variant
    wordDocument = gzip.ReadFile("faxCover.doc")
    
    gzip.CompressMemToFile wordDocument, "faxCover.doc.gz"
    z.CompressMemToFile wordDocument, "faxCover.doc.Z"