How to add LPT port to win 2003 system

What is the LPT port used for? LPT port (printer-specific) LPT parallel port is an enhanced two-way parallel transmission interface. Before the USB interface appeared, it was the most common interface for scanners and printers. This article explains how to add an additional LPT port in a Microsoft Windows Server 2003-based computer. By default, there are 3 LPT available ports in Windows Server 2003, which are LPT1, LPT2, and LPT3. Additional LPT ports can be added up to LPT9. When an additional LPT port is added, it is displayed as an available printer port in the Add Printer Wizard.

How to add an additional LPT port

Click Start\\Run.

Note: "Registry Editor" can cause serious problems that may require reinstalling the operating system. Microsoft does not guarantee that it will solve the problem caused by improper use of the Registry Editor. Use “Registry Editor  at your own risk.

Type regedit in the Open box and click OK.

Locate and then click the following registry key:

HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Ports

The current LPT port is displayed in the right pane.

On the Edit menu, point to New, and then click String Value.

Type a new value name. Type LPT#, where # is the serial number of the LPT port you want to add, then press ENTER. For example, type LPT4.

On the File menu, quit “Registry Editor”.

Click Start\\Run.

Type cmd in the Open box and click OK.

Stop and restart the spooling service. To do this, type the following at the command prompt, pressing ENTER after each line:

net stop spooler

net start spooler

typing exit to exit the command prompt symbol.

The LPT port is useful and convenient for many external devices, so if you need to use a printer, scanner, etc., it is best to add such a port.