Assuming your question is the title of the message, then the answer is it doesn't. If you would like to explain your problem in a bit more detail, we might be able to help you.
#2
Photoshop 5 & 5.5 would not install in a pc with XP Media Center unless there was an established internet connection. After installation and rebooting the programs would not start up until the connection was established again. When the connection is terminated the programs will start unless the pc is rebooted and a connection is established again and terminated. Any solutions would be greatly appreciated.
#3