I found it!!! The Microsoft article on "File and folder Virtualization" said
to go to the C:\Users\User_name\AppData\Local\VirtualStore\MyApp folder. But I
didn't have AppData listed there by clicking my way through the usual way (?).
So I put AppData in Start > Start Search and found it. http://support.microsoft.com/kb/927387/en-us
Then I used the rest of the article directions to go to Virtual Store, but I
didn't see a MyApp folder (maybe I'd find it if I used Start Search)--I found
two other folders: Program Files and Windows.
The Program Files folder had folders of nine things, including four games I'd
taken off my PC a while ago and Giants. In Giants was a folder called savegame,
and in it was a folder called (User name) and in it were keymapping.sav and