I have been searching the site but can not find a definitive answer.  Is it possible to create a multi-volume zip archive that is self-extracting?  If so, at which version was this feature included? Thank you  Erich

There is a method available if you are using the Zip Compression Library (ActiveX) and it is called TestZipFile.  You will find the documentation right here: http://doc.xceedsoft.com/products/XceedZip/TestZipFile_method_and_TestingFile_event_example_for_VB.html There is no equivalent to this method with the .NET version of Xceed Zip but ...