| What i recommend you us to use "multicore". Also to set Stereo Tool to work only on 2. Reason is that ST anyways use not more then 2 cores, and also you will have another 2 cores totally free. This is for Windows7!
 Here is how to do it: You just need to edit your shortcut.
 
 - Right click on ST shortcut and hit "Properities"
 - In new window you should edit "Target"
 Usual ST target for XP is "C:\Program Files\Stereo Tool\StereoTool.exe" and for Windows7 "C:\Program Files (x86)\Stereo Tool\StereoTool.exe"
 - For XP put this as target "C:\Windows\System32\cmd.exe /C start "StereoTool"  /affinity 3 "C:\Program Files\Stereo Tool\StereoTool.exe"
 Number 3 there determines on what cores will program work, so core 1 and 2. Don't get confused, cores are market as 0,1,2 and 3, meaning core 1,2,3 and 4.
 Here is list of possible combinations for quads.
 
 1=Core 0
 2=Core 1
 3=Core's 0+1
 4=Core 2
 5=Core's 0+2
 6=cores 1+2
 7=cores 0+1+2
 8=core 3
 9=core's 0+3
 10=core's 0+1+2+3
 1a=core's 1+3
 1b=core's 0+1+3
 1c=core's 2+3
 1d=core's 0+2+3
 1e=core's 1+2+3
 1f=core's 0+1+2+3
 
 To check is this really work, open Tack Manager right click to StereoTool.exe process and click on "Set Affinity" You should see only core 1 and 2 checked. (0 and 1).
 
 
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