Remove unwanted "Open with" entries

Yesterday i accidentally added 10 unwanted "Open with" entries in the context menu so how do i remove them?

Here is a good write up on how to do it.

Don't worry the easy wasy is included as well using Nirsoft software, so read it down to the bottom :)

http://www.howtogeek.com/howto/windows-vis...s-context-menu/