I've got a little app that makes folders (save right-click-new-folder-ing till your fingers come off) and I'd like to be able to call it from that very same right-click menu, so when I'm in Windaes Destroyer I can make folders to my heart's content. Now, I've mucked about a bit with registry entries et al, but I'd really like to learn more about this, and one of you guys once told me about a place in the MSDN site that goes into detail - anyone got any idea where that might be?