>That is a relief. That I had not missed anything good, I mean. I have 'always' used PKZIP myself, but mostly I simply RUN it, I don't mind the DOS window flashing for a few seconds.

This was a windows component (not PKZip) that came with the OS. As I recall, like PKZip, you'd get a DOS window. The compression ratio nor the speed wasn't anywhere near as good as PKZip's.

I believe it was used for creating and executing installation programs at the time.