[Suggestion] Support for Steam client

Hi!

Since Steam also has it's own browser with its cache and other files like dumps, logs and whatever, I'd like to suggest support for it.

There is an old thread at Steam about things doing it manually but it's a very old one:

http://forums.steampowered.com/forums/showthread.php?t=1660294

(extra) steam support is included in winapp2.ini, which you can find via the top link in my signature.