How to add code profiler in visual studio

Question

Hello,

I want to add code profiler for optimization in my visual studio. I am using visual studio 2008 professional edition. Is there any way to add this feature to my existing
visual studio version. Somebody please help me ASSSAP...

Software Details:

Visual Studio 2008 professional edition

Microsoft Dot Net Framework 3.5 SP1

Window XP

Thanks