Set Affinity Of Program Upon Startup?

Im running Windows 7 64bit. Im wanting a batch file that i can save on my desktop that when run as admin will start up BC2 or what ever program i put in the batch file at high priority and only on cpu cores 1,2 and 3 (2 3 and 4 on actual CPU) command prompt is at C:WindowsSystem32cmd.exe bc2 is at C:Program Files(x86)Electronic ArtsBattlefield Bad Company 2BFBC2Game.exe what is the command line i use inb a batch file to make it run bc2 on high priority and on all cores except the first.I have been trying to get it to work but it just opens cmd.exe and nothing else.I plan on have this one batch file open 4 different programs. BC2 on high and the last 3 cores.as well as teamspeak 3, itunes and fraps all told to only run on the first core. but ill get to that later. i want o get the first section working before i get to that.