From what I\'ve read in the past, you\'re encouraged not to change the priority of your Windows applications programmatically, and if you do, you should never change them to
It would be the highest available priority setting, and would usually only be used on box that was dedicated to running that specific program. It's actually high enough that it could cause starvation of the keyboard and mouse threads to the extent that they become unresponsive.
So basicly, if you have to ask, don't use it :)