Driver mspfltex.sys is blocked from loading after installing ISA Server 2000 on Windows Server 2003

You see the following event after installing ISA Server 2000 on Windows Server 2003
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Event Type:�Error
Event Source:�Application Popup
Event Category:�None
Event ID:�876
User:��N/A

Description:
Driver mspfltex.sys has been blocked from loading.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 00 00 10 00 02 00 74 00�� ......t.
0008: 00 00 00 00 6c 03 00 c0�� ....l..�
0010: 00 00 00 00 6c 03 00 c0�� ....l..�
0018: 00 00 00 00 00 00 00 00�� ........
0020: 00 00 00 00 00 00 00 00�� ........
0028: c5 e2 9a a5 28 7d 9e 41�� ��?�(}?A
0030: 81 5e 91 2c 55 f3 01 78�� �^?,U�.x
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Mspfltex.sys is a MSP Packet Filter Extension. When you install ISA 2000 on Windows Server 2003, it automatically blocks this driver from loading.

Mspfltex.sys is located in %systemdrive%\WINDOWS\system32\drivers on ISA Server. When you install ISA 2000 on Windows Server 2003, it automatically blocks this driver from loading. To resolve this, install;
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ISA Server 2000: Required Updates for Windows Server 2003
http://www.microsoft.com/downloads/details.aspx?familyid=77d89f87-5205-4779-b1ab-fc338283b2d9&displaylang=en
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Or, Install Microsoft Internet Security and Acceleration (ISA) Server 2000 Service Pack 2. SP 2 includes Fixes that enable ISA Server to run on Microsoft Windows Server� 2003, Standard Edition and Windows Server 2003, Enterprise Edition.
http://www.microsoft.com/downloads/details.aspx?FamilyID=C8D3D98B-1CD4-406A-A04A-2AA2547D09A3&displaylang=en
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