@leo:
Yes, you're right! Thank you for your remark.
"OpenExpert" adds a Context Menu entry to the Windows Context Menu itself.
I followed your Tutorial to "Organise and Speed-Up Context Menus":
[url]Tip: Organise and Speed-Up Context Menus]
I moved the 3rd party entries to a submenu but want to have OpenExpert in the first line.
The GUID stuff is only needed if you hide 3rd party entries completely or, like me, don't want to have the "Open with..." in the submenu.