Windows Vista - http://www.vistaarticles.com
Cannot use Serial Cable to Connect Computer
http://www.vistaarticles.com/articles/227/1/Cannot-use-Serial-Cable-to-Connect-Computer
By 
Published on 12/10/2006
 
You cannot use a serial cable connection to connect a Microsoft Windows XP-based computer to a Windows Vista-based computer.

Cannot use Serial Cable to Connect Computer

Use an alternative method to connect the two computers.

For example, use a network connection with Ethernet cables. Alternatively, use a network hub to enable communication between the two computers.