i used to have a program on my old computer years ago that would create a snapshot of the registry and entire harddrive before and after and monitor a program to see which files it interacts with and creates
i used that program to figure out how admins in an online game called "infantryzone" banned people (got banned for using speedhack, this is when it first came out lol), a hidden file on the c:\ root directory, but they also IP banned, luckily i was on dialup
i dont remember what that program was called but it would be good to use it with the VC2 demo to find out if it inserts any hidden regkeys or files to ban people