Unless you have Windows XP, you will need WinZip 6.0 or better. I know for sure that WinZip 8.1 will work. I have not tried the beta for version 9.0 yet.
If you want to register your version of WinZip, e-mail me.
Have Four Winds Mahjong v2.01? Register it.
Chocolate Missile spreadsheet
Virgin Martini spreadsheet