>Besides what Fred and Naomi mentioned, there's a product call DynaZip, I believe. There have been some articles on this FoxTalk and FoxPro Advisor.
>
>You can also use the command line interface for WinZip, which is what I do in one application, but it does require shelling to the command Window.

You can use ShellExecute to not shell DOS window. We used it in my older job.

You can also automate WinZip using Rick Borup's class from Downloads section here.

Dynazip I used in my other job too with Mark McCasland's wrapper.

But anyway, the referenced thread discusses a lot of possible solutions. I'm wondering if we have WiKi page with all utilities listed?