Error message in ISA Server 2004: "MMC encountered an error with the snap-in Microsoft ISA Server 2004" (913785)

The information in this article applies to:

Microsoft Internet Security and Acceleration Server 2004, Enterprise Edition
Microsoft Internet Security and Acceleration Server 2004, Standard Edition, when used with:
- Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86)
- Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86)

SYMPTOMS

You click a policy in the Firewall Policy pane in Microsoft Internet Security and Acceleration (ISA) Server 2004. Then, you click the Protocols tab. In this situation, you receive the following error message:

MMC encountered an error with the snap-in Microsoft ISA Server 2004

When you click OK in response to this message, you receive the following error message:

The Operation Failed

CAUSE

This issue occurs after you upgrade the operating system of the ISA Server 2004 computer from Microsoft Windows Server 2003 to Windows Server 2003 R2.

RESOLUTION

To resolve this issue, install Service Pack 2 for ISA Server 2004. For more information about how to obtain and install the latest service pack for ISA Server 2004, click the following article number to view the article in the Microsoft Knowledge Base:

891024 How to obtain the latest ISA Server 2004 service pack

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Modification Type:	Minor	Last Reviewed:	7/26/2006
Keywords:	kbQFE kbfix kbbug kbpubtypekc KB913785