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All PCL inbox printer drivers become unsigned after you install the Microsoft .NET Framework 3.5 SP1 or the XPS Essentials Pack in Windows XP or in Windows Server 2003Article ID: 971314 - View products that this article applies to. On This PageSYMPTOMSConsider the following scenario. You have a computer that is running Windows XP or Windows Server 2003. You install the Microsoft .NET Framework 3.5 Service Pack 1 (SP1), XML Paper Specification (XPS) Essentials Pack, or any hotfix package that updates the Unidrv.dll file or other printer driver files. In this scenario, all Printer Control Language (PCL) inbox printer drivers become unsigned. Therefore, all PCL inbox printer driver installations are unsuccessful. In this situation, all PCL inbox printer driver installations fail. CAUSEInbox printer drivers are supposed to determine whether the Unidrv.dll file is signed in a catalog that is specified in the Ntprint.inf file. The path of this catalog file is displayed as "CatalogFile=ntprint.cat." When you use the Ntprint.inf file to install a driver, the system checks only for trusted files in the Ntprint.inf file. However, if you install the .NET Framework 3.5 SP1, XPS Essentials Pack, or any hotfix package that updates the Unidrv.dll file or other printer driver files, binaries are signed in to a different .cat file than the Ntprint.cat file. Therefore, inbox driver installations fail. Update informationWindows XP, 32-bit versionsThe following file is available for download from the Microsoft Download Center:Collapse this image 
(http://www.microsoft.com/downloads/details.aspx?FamilyId=64ae00c2-ceca-4a21-ae72-b6432781e540)
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: 119591
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
(http://support.microsoft.com/kb/119591/
)
How to obtain Microsoft support files from online services
Windows Server 2003, 32-bit versionsThe following file is available for download from the Microsoft Download Center:Collapse this image
(http://www.microsoft.com/downloads/details.aspx?FamilyId=b371d38b-e4c1-4b05-bb68-258e982f5ce3)
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: 119591
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
(http://support.microsoft.com/kb/119591/
)
How to obtain Microsoft support files from online services
Windows Server 2003, x64-based versions and Windows XP Professional x64 EditionThe following file is available for download from the Microsoft Download Center:Collapse this image
(http://www.microsoft.com/downloads/details.aspx?FamilyId=86d8ff9c-707d-4703-b1f4-bdd32dadfe52)
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: 119591
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
(http://support.microsoft.com/kb/119591/
)
How to obtain Microsoft support files from online services
Windows Server 2003, Itanium-based versionsThe following file is available for download from the Microsoft Download Center:Collapse this image
(http://www.microsoft.com/downloads/details.aspx?FamilyId=d386e840-437f-461c-8c86-d7f19c001fb9)
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: 119591
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
(http://support.microsoft.com/kb/119591/
)
How to obtain Microsoft support files from online services
STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. MORE INFORMATIONFor more information about the Microsoft .NET Framework 3.5 SP1, visit the following Microsoft Web site: http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=ab99342f-5d1a-413d-8319-81da479ab0d7 For more information about XPS Essentials Pack, visit the following Microsoft Web site:
(http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=ab99342f-5d1a-413d-8319-81da479ab0d7)
http://www.microsoft.com/downloads/details.aspx?FamilyId=B8DCFFDD-E3A5-44CC-8021-7649FD37FFEE&displaylang=en
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://www.microsoft.com/downloads/details.aspx?FamilyId=B8DCFFDD-E3A5-44CC-8021-7649FD37FFEE&displaylang=en)
824684
(http://support.microsoft.com/kb/824684/
)
Description of the standard terminology that is used to describe Microsoft software updates
PropertiesArticle ID: 971314 - Last Review: August 25, 2009 - Revision: 3.0 APPLIES TO
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