Problems Adding or Deleting Printer Ports in Print Manager (101812)

RESOLUTION

To work around this problem, you have to add the deleted port back through the Registry Database, as shown below.

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

1. Start the Registry Editor (REGEDT32.EXE) and go to the following subkey in the HKEY_LOCAL_MACHINE on Local Machine subtree:

         Software\Microsoft\Windows NT\CurrentVersion\Ports

2. From the Edit menu, choose Add Value.
3. In the Value Name box, type the printer port that was deleted (for example, COM1: or LPT1:). Retain the default value in the Data box (REG_SZ), and choose OK.
4. In the String box, type the appropriate settings that correspond to the port you typed in the Value Name box, for example:

         9600,n,8,1 for COM ports
         No entries for LPT ports

5. Exit the Registry Editor. Log off and log on.

   Software\Microsoft\Windows NT\CurrentVersion\Ports

   Value name    Data type    String value
   ---------------------------------------

   COM1:         REG_SZ       9600,n,8,1
   COM2:         REG_SZ       9600,n,8,1
   COM3:         REG_SZ       9600,n,8,1
   COM4:         REG_SZ       9600,n,8,1
   FILE:         REG_SZ       empty
   LPT1:         REG_SZ       empty
   LPT2:         REG_SZ       empty
   LPT3:         REG_SZ       empty