I could be wrong because I don't use either program, although they are both good ones but I doubt if there is a conflict between those 2 programs. I just briefly checked the WinPatrol support forum at CastleCops and didn't see anything posted but you could read that more if you'd like. I would read all the stickies at the top of the page. That is where they would normally post something like that.
http://www.castlecops.com/f105-WinPatrol_Talk.html