IIS7 Application pool best practices configuration

Is there a guideline or site in where I can informa开发者_如何学JAVAtion about best practices for configuring IIS 7 Application Pools?

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Take a look at http://technet.microsoft.com/en-us/library/cc753734(WS.10).aspx for an IIS 7 overview but look at the Understanding Sites, Applications and Virtual Directories section http://learn.iis.net/page.aspx/150/understanding-sites-applications-and-virtual-directories-on-iis-7/

Hard to really put together best practices since each setup is different, however it usually comes down to performance vs security.

The short answer there is to group similar security requirements into the same app pools but don't be afraid to make additional app pools.