Most of the options listed there are simply shortcuts in the directory C:\Users\username\AppData\Roaming\Microsoft\Windows\SendTo (where username is your Windows username), and adding/deleting shortcuts there will immediately update the right-click menu. Just note that it is a hidden directory, so if you wish to browse there you'll need to enable the viewing of hidden files/folders in Organize->Folder and Search Options->View.
Hope this helps,
When in Windows Explorer and right click on a folder or file I get a huge list of items to which I can send the folder or file. I would like to cut the number of items on that list and but can't figure out where the Send To menu is.
I am fairly certain that I didn't have to edit the Registry in XP?