Had anyone else problems with this add on. Seems to be almost impossible to get rid of it

Have you tried running Malwarebytes Anti-Malware?
There's usually an executable that auto starts with Windows that keeps installing the addon each time it's removed.

commented: worked well, thanks +5

No I haven't. I am sort of careful not to introduce more problems by not getting rid of another adon. I am looking at sysinternals from MS at the moment. I also got now 2 other stupid programs, Snapdo and search safe.finder. Well, think I got some learning todo of how to remove th├ęse. Thanks anyway.

AdwCleaner should take care of Snapdo and search safe.finder.
It requires no installation.

Adwcleaner and Junkware Removal Tool are handy applications for getting rid of these types of adware. I posted tutorials for you to find your way around things with these two tools:
Junkware Removal tool is just so easy to use. Just a click and away she goes. It will generate a log for you of what's being removed after the application has finished scanning. I've provided a link here for the tool: http://www.bleepingcomputer.com/download/junkware-removal-tool/