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Advisory: Sophos Anti-Virus for Windows 2000+ - conflict with Update Rollup 1 for Windows 2000 SP4

This product is nearing retirement. We strongly recommend that you upgrade in order to ensure your protection stays fully up to date.

Note: This issue has been fixed in Sophos Anti-Virus version 5.0.5 and above. Ensure that your anti-virus software is up to date.

Customers using Sophos Anti-Virus for Windows 2000+ version 5 may experience problems after updating to Microsoft Update Rollup 1 for Windows 2000 Service Pack 4 (SP4) - KB891861.

Once this update has been applied, computers can take up to 15 minutes to log on to the network, displaying the message "preparing network connections".

Note: A separate knowledgebase article covers another slow startup issue.

What to do

Upgrade to the most recent version of Sophos Anti-Virus.

If problems persist, exclude the following file from on-access scanning:

If you need more information or guidance, then please contact technical support.