If anybody plays petz 4 on a computer that is running Xp or Vista, the game will freeze soon after it starts up. the way to fix it is to go to Petz 4 Download Patch
and click on the patch you want.(There are two, but either works)
A window will pop up and ask you if you want to open or save. Click Open NOT Save.
It will say its installing, and when its done, it shouldn't freeze anymore>