Thanks for posting that tip here.
Even though I have no fps issues running FSX under Windows 7, with thanks to the well known tips from Boyote
Thanks for reposting this tip trucker17.
I found the original post by Daniel Cziranku, and it would seem it's not FSX specific, but has helped
This was posted by Daniel Cziranku on another site.
After trying it out, I found it worked fantastic, and want to share it here.