I was browing Wikipedia just now and came across the article about PKZIP.
I read through the version history: 2.50, first version for Windows (3.1/95/NT), 1999, ho hum.
Read, read... version 5? 8? 11? 12.1, released 2008-06-03?
These guys are still around?
I thought they had faded into oblivion and went bankrupt or something, since WinZip seems to be the de facto ZIP file creation utility if you want something that costs money.