Open Zip from a Web URL and Unzip

Download Chilkat .NET for 2.0 / 3.5 Framework

Download Chilkat .NET for 1.0 / 1.1 Framework

Example program showing how to HTTP download a Zip, opening it in memory, and unzipping to a file directory.

        Dim zip As New Chilkat.Zip()

        ' Anything begins the 30-day trial
        Dim unlocked As Boolean
        unlocked = zip.UnlockComponent("30-day trial")
        If (Not unlocked) Then
            MsgBox("Failed to unlock component")
            Exit Sub
        End If

        ' Open a Zip from a website URL
        ' This URL is valid, and can be tested.
        Dim success As Boolean
        success = zip.OpenFromWeb("http://www.chilkatsoft.com/ChilkatDude.zip")
        If (Not success) Then
            MsgBox(zip.LastErrorText)
            Exit Sub
        End If

        ' Unzip to the temp directory, creating subdirectories automatically
        ' if necessary.
        success = zip.Unzip("c:/temp")
        If (Not success) Then
            MsgBox(zip.LastErrorText)
            Exit Sub
        Else
            MsgBox("Unzipped!")
        End If

Important: The download for this example does not contain the ChilkatDotNet.dll which
must be downloaded and installed separately at http://www.chilkatsoft.com/downloads.asp.
Once installed, add a reference to the DLL in the project by following the instructions at
http://www.example-code.com/vbdotnet/step2.asp