hi,,, you can also manually remove them from the registry,,,, make a backup of the registry first and save it to a folder in documents,,,,http://www.pcruneasy.com/tutorials/vista/regedit/backup.php
once this is done,,, try this
1. Click Start
2. Type in regedit in to search box and press ENTER
3. Browse to the following: [list]HKEY_CLASSES_ROOT\*\shellex\ContextMenuHandlers
(This is where programs attach to the right click menu.)
4. You simply delete or export then delete the keys regarding to the program you do not want.
DO NOT DO THIS WITHOUT FIRST MAKING THE REGISTRY BACKUP.
if all goes wrong for you,, navigate to the backup right click it and click on merge, and the registry will be put back to how it was,,,,