Restricting Available Main Memory

Hi,
How can I restrict the avaiable memory for an application?
I am doing some kind of scalability testing.

Thanks.

Forgot to mention, I am working on MS Windows 2000 Advanced Server.

Should I assume this is not possible?


I had considered having another program which itself alllocates some memory and does nothing with it.
But the problem is this would actually allocate and hence restrict part of my virtual memory.

The allocated part will for most of the time remain in paged out state, defeating the purpose.

Please let me know if anyone has tried on similar lines