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# Problem with the Copy Command and Multiple Parallel Ports

Article ID: 108238

Article Last Modified on 10/31/2006

APPLIES TO

- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.5
- Microsoft Windows NT Workstation 3.51
- Microsoft Windows NT Server 3.5
- Microsoft Windows NT Server 3.51

This article was previously published under Q108238

## SYMPTOMS

If you have two or more parallel ports using the same IRQ and you copy files directly to the printer port(s) from a command prompt using the Copy command, the file may not be directed to the correct port (printer). Note this happens when you use the Copy command locally or to its shared networked printers.

## RESOLUTION

To work around this problem, put the LPT ports on unique IRQs.

## MORE INFORMATION

### Steps to Reproduce Problem

On a computer with two or more printer ports installed on the same IRQ (usually 7), do the following:

1. Open a command prompt or CMD.
2. Copy a file using the following command:

   Copy C:\WINNT\SYSTEM32\CONFIG.NT LPT1:

The print job will go to the default printer regardless which port you copy the file to.
NOTE: This problem only occurs when you are using the Copy command to port commands.

Additional query words: prodnt parallel IRQ copy LPT command

Keywords: kbprint KB108238