How to Increase the Number of Scanning Processes in Forefront Security for Exchange Server
Topic Last Modified: 2009-02-10
This topic explains how to use the Forefront Server Security Administrator tool to increase the number of scanning processes in Microsoft Forefront Security for Exchange Server.
To perform this procedure, the account you use must be delegated the following:
Local Administrator rights
For more information about permissions, delegating roles, and the rights that are required to administer Exchange Server 2007, see Permission Considerations.
Click Start, point to Programs, point to Microsoft Forefront Server Security, point to Exchange Server, and then click Forefront Server Security Administrator.
In the What server you want to connect to box, click the appropriate Exchange server. Or, click Browse, and then locate the server that you want.
In the Shuttle Navigator, click Settings, and then click General Options.
In the Scanning area, click a suitable value in the Transport Process Count box. The maximum value that you can use is 10.
In the Realtime Process Count box, click a suitable value. The maximum value that you can use is 10.
Exit the Forefront Server Security Administrator tool.
Restart the FSCController service.
In Exchange Server 2007, Forefront Security supports multiple scanning processes for real-time scanning and for the transport scan process. The transport scan process also scans e-mail messages on the SMTP virtual servers. When you increase the number of scanning processes for the real-time scanner, you may help prevent the following issues:
Issues in which Microsoft Outlook client computers stop responding
Message queuing issues
When you increase the number of scanning processes for the transport scanner, you may help prevent messages from building up in the transport queues.
The following registry entries control the number of scanning processes that run on the Exchange server:
- RealtimeProcessCount: This registry entry controls the number of real-time scanning processes.
- InternetProcessCount: This registry entry controls the number of transport scanning processes.
When you start the Forefront service for the first time, these registry entries are created under the following registry subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow643Node\Microsoft\Forefront Server Security\Exchange Server
The default value of each of these registry entries is 4. By default, four processes are run on the Exchange Mailbox server.