Microsoft KB Archive/247553

= Windows NT Option Pack (NTOP) Downgrades MDAC Components =

Article ID: 247553

Article Last Modified on 6/23/2005

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APPLIES TO


 * Microsoft Internet Information Server 4.0

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This article was previously published under Q247553



We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 running on Microsoft Windows Server 2003. IIS 6.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site:

http://www.microsoft.com/technet/security/prodtech/IIS.mspx



SYMPTOMS
When you install the Windows NT Option Pack (NTOP), some MDAC components may be downgraded to the version that is included with the NTOP regardless of the version of MDAC that is already installed on the computer.



CAUSE
IIS 4.0 ignores the MDAC file and registry version information and installs the version of MDAC included in the IIS 4.0 Setup program.



WORKAROUND
To work around this problem, you can manually suppress the entire MDAC portion of the IIS 4.0 (Option Pack) Setup program.

NOTE: If you do not have a version of MDAC installed before you attempt this workaround, your IIS installation may fail to function properly. MDAC is required by IIS for some of its basic functionality. Use this workaround at your own risk.

To suppress the MDAC installation during IIS 4.0 setup, do the following:  Copy the Windows NT Option Pack files to a temporary directory on your hard drive. Edit the Iisv4.inf file in the temporary directory where you copied the IIS 4.0 Setup files.  Locate the section [Components.x86], and use a semicolon to comment out the following line:

;DAC=dagsetup.dll,DAGSetup,dagsetup.inf  Repeat step 3 for the section [Components.alpha].



Keywords: kbprb kbpending KB247553

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