Process Tamer And/or Mz Cpu Accelerator?

Could some kind techy minded person please tell me if these two programs will work well with each other or if I should use just one (in which case which one) please ....
Download Process Tamer
and
Mz CPU Accelerator 4.10

Am using Windows 7 Home Premium with 3gb of memory and am rather concerned that Task Manager tells me the CPU is running between 70% and 99% when I watch a YouTube video with nothing else running except my AVG and Thunderbird email program.

Or, is there is something better?

All and any advice greatly appreciated.

 

Looking at the first program, although it says Windows all, it is a 7 year old program and says this

I'd probably recommend Process Explorer http://www.majorgeeks.com/files/details/microsoft_process_explorer.html

This shows you the first window you see when you run it. It doesn't get installed, it runs from an exe.
The 2nd window shows you how to sort by CPU so you can see what process is using the most.
http://www.sevenforums.com/performa...i-find-out-what-program-using-all-my-cpu.html