A lot of Applications actually, I figured ccleaner would auto detect them or whatever like they did on my desktop but it doesn't seem to be doing that.
Just to name a few:
Microsoft Office
OpenOffice
Media Player Classic
KMPlayer
There are a few more, but I guess those ones could be called the more pressing ones. In the end I guess those not being cleared aren't that big a deal, but I just wonder why it would work on my desktop and not my netbook.