mjones

Yes you can add a file type there but you can't create the
PersistentHandler key there - you have to edit the registry to do so.

On another note - I have no clue how you can make this work for files
with no extensions (no file type at all) because you can't create a
class entry that is null. You can add the file type with just a
period and no extension but it doesn't apply to files with no
extension unles you name them like "something. " not just
"something "

So I can't help with that. But, you can use findstr in a command
prompt to search through files with no period and no extension. I
have never had to do that before until I just tested it now.

Marc