What is the game where you can have a dog right on the background of your computer. You can pick the colors, feed it, water it, and play fetch with it?

Here's a pic of what the dog looks like:
http://i602.photobucket.com/albums/tt102/AleeRex/rover.gif

There are other cyber pets too. (I have a cat.) Here's a site that gives links --

Virtual Desktop Pets (http://online.lovetoknow.com/wiki/Virtual_Desktop_Pets)