In response to my post about Startup Control Panel, Lance Robinson has pointed me in the direction of Sysinternals' wonderful freeware - Autoruns.
Autoruns does everything Startup Control Panel does and much more. It lets you comfortably control Explorer shell extensions, IE browser helper objects (BHOs), Windows services, Installed DLLs and more. It also provides more information on each entry of these categories.
I heartily recommend it and I thank Lance for letting me know about it.