Windows : Can you make a program run on CPU 8 ?

[SamuelAdams]

This is a personal project, please provide an example if you can.
Thx

[JLBorges]

SetProcessAffinityMask() https://msdn.microsoft.com/en-us/library/windows/desktop/ms686223(v=vs.85).aspx
SetThreadAffinityMask() https://msdn.microsoft.com/en-us/library/windows/desktop/ms686247(v=vs.85).aspx

[SamuelAdams]

Thx