If the extension of the file is .zip you need an unzipper to unzip the file. Winzip is available for a price.
I am trying to install a program called REGMON.A window appears saying "open with, click the program you want to use to open 'ntregmon.zip'. if the program is not in the list,click other". There's a list of options,such as spybot,ms word,IE,and so on to choose.If I pick MS WORD,this program will only open if I open MS WORD,am I reading that right,also why do I rarely encounter this open with window.My OS is WIN 2K PRO.If you need any more info,please advise.