How to set processor affinity for specific application/service


I run an application as a service that is crashing occasionally and I have been advised that I should set it to use only one processor. This server is dual processor with hyperthreading so sort of has 4 processors.

I initially assumed I could do this from Task Manager but I get Access Denied (I'm logged on with Administrator permissions). I've found info on Affinity Masks but that seems to affect all applications.

How do I do this?

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How are you attempting this in Task Manager?

Your application must be running, then open Task Manager and go to Processes.  Right-click the process and select Set Affinity. Clear one of the CPUs.

Try it from a Remote console if you don't seem to have permissions for, some reason, locally.

Let us know.

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tangerine27Author Commented:
Hmmm... strange. I just connected again as before using console connection with Remote Desktop and had no permissions issue.

Thanks anyway!
Glad you got it!

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Windows Server 2003

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