turn off arbitrary number of cores in a quad core CPU?

J

james

I'm testing an app that seems to crash differently depending on the number
of CPU cores.

To test this hypothesis, I need to turn off 1, 2, 3 cores.
I can turn off 3 cores by adding /onecpu to the boot.ini file. Is there a
way to turn off 1 and 2 cores?

I'm running windowsXP home.

The CPU is intel Q6600.
 

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