Sdílet prostřednictvím

Slow performance with McAfee antivirus

This article provides workarounds for the performance issues in Microsoft Dynamics CRM that may occur if you run the McAfee Enterprise 8.x virus scanner.

Applies to:   Microsoft Dynamics CRM 2011, Microsoft Security Essentials
Original KB number:   924341


You might experience performance issues in Microsoft Dynamics CRM if you are running McAfee Enterprise 8.x virus scanner in combination with active Script Scan.

McAfee and Microsoft are working closely together on this performance problem. If you experience this behavior, contact McAfee to open a support case.


This problem occurs because McAfee provides the functionality of script scanning.


We suggest the following workarounds:

  • Update your virus scanner to McAfee Enterprise version 8.7, and install the latest patches. If you cannot do this, upgrade to McAdfee Enterprise version 8.5, including the latest patches.
  • If the first workaround is not viable for you, you can turn off the ScriptScan functionality in McAfee Enterprise version 8.x.

Third-party information disclaimer

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.