I tried to install the software for Peer-to-Peer (PTP) printing, but received an error message and the installation was aborted.

Possible Solution:

If you have previously installed the Wireless USB Print Server software, you will need to uninstall it before you can install the Peer-to-Peer software. Click Windows Start > Programs > U.S. Robotics Print Server > Uninstall and then follow the on-screen instructions. When the uninstallation is complete, you will need to reboot your computer. You will then be able to install the Peer-to-Peer software.