I presume right-clicking does the same thing. I get 2 browser options, save as file or install, etc.

That 'other' verison shoud work ok. hahaha xcuse me but sounds like nothing's going right! Try again unzipping. Hmmm when was the last time you did a system maintenance check? You are using admin priviledges I presume? I wonder ... I'm not a windows user per se, though I do have win 2k on my computer. I wonder if you could achieve what you want to do after a SAFE Boot.?!? Try disconnecting from the net, & temporarily disabling your firewalls & anti-virus, adware & spyware before you try installing.