Article ID: 832219 - View products that this article applies to.
After you install Microsoft Windows 2000 Service Pack 2 (SP2), a Windows Server 2003 service pack, an Update Rollup, or a hotfix that updates the Unidrvui.dll file, users may experience both of the following symptoms:
This behavior may occur if you install the service pack or hotfix package on a server that has many Unidrv-based Printer Control Language (PCL) printer drivers.
When you install a service pack or hotfix file that updates Unidrvui.dll on a server with many Unidrv-based PCL printer drivers, the server may spend a long time (up to 2 hours) regenerating the parsed binary printer description files (.bud files) that are used to increase spooler efficiency for these drivers. During this time, Print Spooler cannot receive incoming print jobs and may return messages to clients that indicate that the print queue is full. This is a one-time parsing operation and does not occur after the parsed binary .bud files are successfully regenerated.
Binary .bud files that are generated from generic printer description (GPD) files must be regenerated because the GPD parser file version is changed. After all the Unidrv-based PCL drivers are parsed, the spooler can again receive print jobs. Because of this, Microsoft recommends that you schedule service pack and hotfix installations on servers with many Unidrv-based PCL printer drivers to accommodate this up-to-two-hour .bud file compilation.
To resolve this issue, schedule sufficient time for the server to complete the parsing of all Unidrv-based printer drivers for each upgraded driver file, and then schedule sufficient time for each printer that uses these files.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
If you cannot wait for the server to complete the parsing of all the Unidrv-based printer drivers, manually remove all cached binary printer description files (.bud files), and then let them be automatically re-created. Depending on the speed of your server, this automatic re-creation may be completed in a shorter time. Typically, this operation is completed within 30 minutes.
Note When Print Spooler starts, it installs a newer version of Unidrv.dll. As a result, the .bud files are out of date. The .bud files are the compiled versions of .ppd files and can be completely regenerated from those .ppd files. Because of this, you can remove the .bud files. To do this, follow these steps:
In the .NET Framework 3.0, the unidrv.dll file is now included with XPS printing. The unidrv.dll file can also trigger this behavior.
Article ID: 832219 - Last Review: November 26, 2007 - Revision: 5.5
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