I've Tested it and it works fine on Windows XP running hero at 1280x1024 windowed mode.
for Vista you must run as an administrator...
Here is How it Works:
Launch Hero and find a partner to pet train.
AFTER OPENING HERO, you can run the Pet Trainer.
Put your pet food at slot 0 (between 9 and - ... LOL).
If your pet's hunger comes below 90% it will use food on slot 0.
: Keep your game window open, or it will not work.
: If you close Hero, it automatically closes the bot.
Antivir: Nothing found
ArcaVir: Nothing found
AVG: Nothing found
BitDefender: Nothing found
VirusBlokAda32: Nothing found
VirusBuster: Nothing found