How to Additional LPT Ports
Click Start, and then click Run.WARNING:
If you use Registry Editor incorrectly, you may cause serious
problems that may require you to reinstall
your operating system. Microsoft cannot guarantee
that you can solve problems that result from
using Registry Editor incorrectly. Use Registry
Editor at your own risk.
In the Open box, type regedit, and then click OK.
Locate and click the following registry key:
The current LPT ports are displayed in the right pane.
On the Edit menu, point to New, and then click String Value.
Type a name for the new value. To do this, type LPT#, where
# is the number of the LPT port that you want to add, and then press ENTER.
For example, type LPT4.
On the File menu, click Exit to quit Registry Editor.
Click Start, and then click Run.
In the Open box, type cmd, and then click OK.
Stop and restart the Spooler service. To do so, type the following
lines at the command prompt, pressing ENTER after each line:
net stop spooler
net start spooler
Type exit to quit the command prompt.