If you are definitely using the correct
breedfile for patching a Petz 4 breed, and the patch throws up an error
message about it being the wrong size, then you will have to do a little
more work because your originals are from a slightly different version than
mine. Now, don't panic -- just open the breedfile in a hex editor and go
right down to the bottom end. Where you see the phrase
"Projects\Alpo" replace it with "Petz\Alpo". Save. The
patch will now work on that breedfile.