User:Dee/SendKeys in Vista
For anyone that makes use of SendKeys and has tested their application on an early build of Windows Vista, they will have noticed that its a fairly efficient way of killing the program.
This is due to increased security on one of the methods it uses, but not SendKeys itself.
Luckily however, this has been fixed in Windows Vista RC1 and later.
There is more information available on Michael Kaplan's blog