Windows server 2008 or Windows 7?

Thanks community,

I've understood that I can run a job in multiple cores but I have a last question regarding this issue..

Do I to configure de a queue manager in Microsoft Windows Server  2008 or it is possible in Microsoft Windows 7 client?

In other words,  wich operative system is recommended to use a multiple core workstation?

I need to choose the operative system.

Thanks again,

--Amaia