Oliver,
I added your "A_DIN13-1.hol" file to my hole directory, but it does not show up in my drop-down menu when I go to insert a new hole.
I closed and reopend ProE 5.0 before doing this, but it still does not show up as a kind of .hol file I can use.
Do you have any ideas of what I need to do to be able to see your ".hol" file options?