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1) Start Registry Editor (Regedt32.exe) and locate the following key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Monitors

Note: The default port monitors are:

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• AppleTalk Printing Devices (When Services for Macintosh is installed)
• BJ Language Monitor
• Local Port
• PJL Language Monitor
• Standard TCP/IP Port
• USB Monitor
• Windows NT Fax Monitor
• LPR PORT <<<— DO NOT DELETE

Here is a Screenshot of what you may see in the Print Key:

Example 1:

2) Identify the print monitor or Monitors to be deleted.

Click on the first one. In this example we are using the HP Laserjet 5 Language Monitor. On your right hand you will see a String value named: Driver. Write down the name of the dll you are seen here. Later on, we will be running a search using the dll name.

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Example 1.1HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Print\Monitors\hp laserjet 5 language monitor

Driver REG_SZ hpdcmon.dll

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3) Once you have written down the dll name, go ahead and Delete the registry: Example: hp laserjet 5 language monitor.4) Now, we need to go to the following registry and make sure we clear all printers from referencing the deleted Print Monitor/s:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Print\Environments\Windows NT x86\Drivers

• Version 2 = Winnt 4.0 Print Drivers - You not have these!!!
• Version 3 = Windows 2000/2003 and Windows XP Drivers

Go over the entire Print Driver Version key and delete any references you may find in the the String Value named: “Monitors”. (See Example 2)

Just click on “Monitors” to open the Editor and then delete the entry.

5) Repete the previous steps under the Print Driver Version 3

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By now, we have removed all 3rd party monitors and all print references to the print monitors.Now, we need to make sure we rename the dlls used by the Print Monitors.

• In this example, we are using the HP Laserjet 5 Language Monitor, however this could also be seen with other vendors.

6) Now we need to go to the following directory and search for the dlls that the Print Monitors were using.

In the example the dll that we have to search for is the hpdcmon.dll

Now, Search under \Winnt\System32

** Renamed the dll to .old (Example: hpdcmon.old) You may find the dll under the following directories:

• %systemroot%\SYSTEM32\
• %systemroot%\SYSTEM32\SPOOL\DRIVERS\W32X86\2 & %systemroot%\SYSTEM32\DRIVERS\W32X86\3

7) Restart the Spool Service and monitor the Server.
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All printer information is stored under the following registry key:
HKLM\Cluster\Resources\ResourceGUID\

All printer, driver, port information, spool directory, job completion tiemout is stored in separate keys under the following parameters key:
HKLM\Cluster\Resources\ResourceGUID\Parameters

Structure necessary for other Windows based print clients under the following key:
HKLM\Cluster\Resources\ResourceGUID\Parameters\Environments

Monitor information, TCP/IP ports, port address, name and SNMP information under the following key:
HKLM\Cluster\Resources\ResourceGUID\Parameters\Monitors

The same printer information as stored in a non clustered HKLM\System\CCS\Control\Print key is stored under the following key:
HKLM\Cluster\Resources\ResourceGUID\Parameters\Printers

The printer share is still populated under

HKLM\System\CurrentControlSet\services\LanmanServer\Shares

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Filed under: Printing, Cluster