Most if not all utility/tweak software like 'Windows 7 Manager' and 'Tune-Up Utilities' can do this. You can also do it yourself quite easily by adding a couple of registry keys. I have attached the reg file that you need to add these two context menu handlers.
No, sorry I meant I only ever use it from the right-click context menu, much handier! I don't use the reg file, I always used 'Tune-Up' or 'Windows 7 Manager' to make those sort of tweaks amongst others, but I always kept a copy of it around just in case.