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Error message when you try to install the SMS 2003 Advanced Client package from hotfix 941214 on a 64-bit version of Windows Vista: "Windows requires a digitally signed driver - file: prepdrvAMD64.sys"
Article ID: 951497 - View products that this article applies to.
Consider the following scenario:
Note This problem does not occur on client computers that are running an x86 version of Windows Vista.
Program Compatibility Assistant
Windows requires a digitally signed driver - file: prepdrvAMD64.sys
This problem occurs because the Prepdrvamd64.sys and Prepdrvia64.sys files in the SMS 2003 Advanced Client package from hotfix 941214 are not digitally signed.
To resolve this problem, apply the following hotfix before you install the SMS 2003 Advanced Client package from hotfix 941214.
Hotfix informationA supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
PrerequisitesTo apply this hotfix, you must have SMS 2003 Service Pack 3 installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/885643/ )How to obtain the latest Systems Management Server 2003 service pack
Restart requirementYou do not have to restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Collapse this tableExpand this table
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/LN/ )Description of the standard terminology that is used to describe Microsoft software updates