Download ZLIB for Visual Basic (26kB 24-8-97) ZLIB has been ported to an .OCX by Mark Nelson. If you don’t want the overhead of an .ocx, you can use this zlibvb.bas file (module) to give you access to the basic routines. In order to use it, you’re going to need one of the ZLIB.DLL files from the ZLIB page; I’ve included one of them in the .zip file.
Note: If the link on this page doesn’t work, try
this oneinstead.

http://patb.dhs.org/Programming/ZlibVB.htm