Maybe I'm off-base w/this suggestion, but you might want to see if it works to run CUVIDServer as a service:
http://support.microsoft.com/kb/137890
I haven't tried it (yet) myself...
EDIT: Well I tried but was not successful in getting this to work. Maybe it's due to my XP x64 OS, or CUVIDServer itself, or maybe I didn't implement it correctly. Seems like a reasonable thing to attempt for a PC that uses it a lot though!? If anyone else can get it to work by all means please tell.