Hello,
Normally importing "register_component_category.reg" creates all of
the registry keys and there shouldn't be any hand editing necessary.
There has been at least on report of the extra 64bit keys were not
created. Perhaps a permissions issue, check to see if your user
account is a member of the local Administrators group.
As to whether there is supposed to be only the one subkey or not, I
don't know. I only have a vague understanding of what these entries do
myself. Please export the registry keys (and any others you feel may
be relevant) to a file and send them to me. We can compare with my
working 64bit XP system and see if I can determine the essential
difference. Here is a batch file to export the ones that should be
there:
http://code.google.com/p/arcmapbook/source/browse/trunk/tools
along with the output of frrom my machine.
best regards,
-matt