Outlook 2007 RPC Throttling

This is very useful especially if you are considering server performance on your Exchange 2007, for MAPI and RPC Over HTTP clients

Here's the registry key:

HKLM\system\currentcontrolset\services\msexchangeis\parametersSystem

Please read first the link below for more information

http://technet.microsoft.com/en-us/library/cc540454(EXCHG.80).aspx