HKEY_CLASSES_ROOT\CLSID\(63902277-xxxx-xxxx) is the one. Is there a way to write a file like this using X as a wildcard? Thanks. I said wildcards after 63902277, see the program always uses 63902277 ...
I've made myself some context menu entries for Perl scripts by adding keys beneath HKEY_CLASSES_ROOT\pl_auto_file\shell. I'd like to play the same trick on Excel ...