Microsoft KB Archive/247071

Knowledge Base

ICA Auto-Created Printer Functionality May Not Work with Terminal Server Edition, Service Pack 5

Article ID: 247071

Article Last Modified on 11/1/2006

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APPLIES TO

• Microsoft Windows NT Server 4.0, Terminal Server Edition Service Pack 5

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This article was previously published under Q247071

SYMPTOMS

After upgrading your server to Terminal Server Edition, Service Pack 5, the auto-created printer functionality of Independent Computing Architecture (ICA) clients may not work, for both administrative and non-administrative users. This behavior occurs if clients are connecting from a workstation whose default printer is a shared printer from a Windows NT print server.

CAUSE

This behavior occurs because print servers are not seen as a trusted source for Terminal Server printers by default. For additional information about trusted sources, click the article number below to view the article in the Microsoft Knowledge Base:

238070 Computer May Hang if Multiple TSE Users Print Simultaneously

RESOLUTION

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.

To resolve this issue, use the following steps.

On the print server:

1. Edit the appropriate registry key (where %SystemRoot% is your Windows folder).
2. Locate the folder where your printers reside and share out the folder.
   • Default folder for x86-based computers:
     

%SystemRoot%\System32\Spool\Drivers\W32x86

1. • Default folder for Alpha-based computers:
     

%SystemRoot%\System32\Spool\Drivers\W32alpha

1. Set the appropriate permissions on the folder (for example, give users permission to install printer drivers, or only give administrators that ability).

On the console of the Terminal Server computer:

1. Start Registry Editor (Regedt32).
2. Locate the following registry key:

   HKEY_LOCAL_MACHINE\System\Current Control Set\Control\Print\Providers\ LanMan Print Services\Servers

3. Locate the following registry value:

   TrustedDriverPath: %SystemRoot%\System32\Spool\Drivers\W32%PROCESSOR_ARCHITECTURE%

4. Change the value to the following:

   TrustedDriverPath: %SystemRoot%\System32\Spool\Drivers\W32%PROCESSOR_ARCHITECTURE%; \\Servername\Sharename

   where Servername is the name of your print server and Sharename is the name of the newly created driver share on the print server.

MORE INFORMATION

Windows NT Server 4.0, Terminal Server Edition, Service Pack 5 does not allow auto-created printers unless the driver is already installed locally on the Terminal Server computer.

Some printer drivers that are designed for Microsoft Windows NT Workstation and Microsoft Windows NT Server are not multiuser aware and can cause instability in a Terminal Server environment. You can use this new feature to gain more control in your Terminal Server printing environment.

Additional query words: fail failed

Keywords: kbenv kbprb kbprint KB247071

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