Ok for those wondering about where to find your program data is its hidden you have to go into control panel, and then appearances and personalization. Then under folder option click the show hidden files and folders. In the view tab look for option to select show hidden stuff and there you go. go to your c drive again and you will see programdata. Have fun.
Not so: there's no "Appearances" under WinXP: what you want is Folders-->View in the Control Panel, then "Show hidden files and folders." Also, no checks on any line beginning "hide," all checks on any line beginning "show."
Yes, I've done this already, and long ago, since I like to see exactly what's on my system, and I've made sure it's still as I set it. No, it doesn't help, here. Still no programdata except as noted above, where there's no zip archive as described.