Zip One File

Zip a single file.

Download Chilkat Zip ActiveX

Dim zip As New ChilkatZip2

Dim success As Long

'  Any string unlocks the component for the 1st 30-days.
success = zip.UnlockComponent("Anything for 30-day trial")
If (success <> 1) Then
    MsgBox zip.LastErrorText
    Exit Sub
End If

success = zip.NewZip("test.zip")
If (success <> 1) Then
    MsgBox zip.LastErrorText
    Exit Sub
End If

'  In this example, the file we wish to zip is c:/temp/abc123/HelloWorld123.txt

'  Add a reference to a single file by calling AppendOneFileOrDir
'  Note: You may use either forward or backward slashes.
Dim saveExtraPath As Long
saveExtraPath = 0
success = zip.AppendOneFileOrDir("c:/temp/abc123/HelloWorld123.txt",saveExtraPath)
If (success <> 1) Then
    MsgBox zip.LastErrorText
    Exit Sub
End If

success = zip.WriteZipAndClose()
If (success <> 1) Then
    MsgBox zip.LastErrorText
    Exit Sub
End If

'  A .zip containing "HelloWorld123.txt" with no path information has been created.
MsgBox "Zip Created!"

'  Perhaps you want to include a path in the .zip such that when unzipping, a sub-directory
'  is automatically created and the file unzipped into it.  Use PathPrefix:

'  (We'll skip checking the success/failure return value.)

'  Set a PathPrefix to get the relative path you want:
'  The .zip will contain this entry: "myApp/HelloWorld123.txt"
success = zip.NewZip("test2.zip")
zip.PathPrefix = "myApp/"
success = zip.AppendOneFileOrDir("c:/temp/abc123/HelloWorld123.txt",saveExtraPath)
success = zip.WriteZipAndClose()