Help all .exe files now .Ink files

All my .exe icon files are now Ink files

This happened to me before and I did a system restore and I got it back

I have tried 3 different dates and the same thing keeps happenning

I am running ad-aware and Ad-watch and I think these have fecked up the registry

When I start up and press start the programs seem ok then Ad-aware kicks in and states registery change detected and buggers it up

I stopped ad-watch running at start up and still no joy ?

Is there any way of fixing this ?

Have a read of this: [broken link removed]