Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool reads the following registry entry to determine if the following conditions are true:

• The Symantec antivirus is installed on the server.
  
  
• The following antivirus definition files are updated:
  
  HKEY_LOCAL_MACHINE\Software\Symantec\SharedDefs\MicroDefs
  
  

If the Exchange Server Analyzer finds that the value data for the BinHubStamp registry key has not been updated in more than 30 days, the Exchange Server Analyzer displays a warning.

Symantec antivirus for Microsoft Exchange Server provides antivirus protection for Exchange Server. It is recommended that you download the latest Symantec antivirus definition as soon as it is released. Make sure that you deploy the antivirus definition update to the following layers in your organization:

• Message gateway servers
  
  
• Exchange servers
  
  
• Client workstations
  
  

To download the latest virus definitions, see the Symantec antivirus Web site, "Symantec home page" (http://www.symantec.com).

For more information about fortifying an Exchange environment against e-mail transmitted viruses and worms, see "Slowing and Stopping E-Mail Viruses in an Exchange Server 2003 Environment" (http://go.microsoft.com/fwlink/?LinkId=47587).

For more information about how to use antivirus software with Exchange Server, see the following Microsoft Knowledge Base articles:

• 328841, "Exchange and antivirus software" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=328841)
  
  
• 823166, "Overview of Exchange Server 2003 and antivirus software" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=823166)
  
  
• 306105, "XGEN: Microsoft's Position on Antivirus Solutions for Exchange 2000" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=306105)
  
  
• 245822, "Recommendations for troubleshooting an Exchange Server computer with antivirus software installed" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=245822)
  
  

For a list of third-party antivirus software that is available for Exchange Server, see the Exchange Server Partners: Antivirus Web site (http://go.microsoft.com/fwlink/?linkid=16226).

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