Copyright 1999 - 2006, Sandra Hardmeier, All Rights Reserved Worldwide
Last updated 20/08/2006

Using Regedit, browse to this registry key and then delete the appropriate entry (folder):

Toolbar buttons:

[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Extensions]

Right click menu:

HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\MenuExt