I am trying to recover the PTE keys from a friend's laptop.  I have a copy of "Keycopy.exe".  When I run it it generates  txt and an reg files for both PTE and Video builder.  To install the keys do I just double click the reg files? I am sure this information is somewhere in the forum but I have not been able to find it so far.  The generated txt file content does not look anything like a PTE key.