[Matty_]

I have applied your batch file to windows 7 and it has seriously degraded my speed, could you by any chance do a batch file which reverts everything back to there original settings, someone might need it.
I have just restores from an image and my speed is back to how it should be/was. Use this on Windows 7 at your own risk and make sure you have an image/backup to restore to.
Not saying it doesn`t work on Vista or putting it down Andy, maybe it was something on my end.

I would say as feedback that webpages where taking at least 10 times longer to open (the page would hang for several seconds). I tried a"netsh int ip reset" but it didn`t help.
7 Home premium behind a router (UPnP disabled [Maybe this was the cause]) Comodo Internet Security/Sandboxie