As Irish Shark stated, using DrTCP will have no effect on Vista.
However, You CAN try Changing Vista's Auto Tuning Level setting, and see if that helps (or not)... See Here for more info: »www.mydigitallife.info/2007/12/1···ormance/ As Always, YMMV...
HTH,
-Tursiops_G. -- If You're Unsure, "RTFM"... If You're SURE, "RTFM" Anyway.