http://blogs.iis.net/rakkimk/archive/2009/07/08/iis7-improving-asp-net-performance-concurrent-requests-while-on-integrated-mode.aspxIf you were a ASP.NET 1.1 developer, and faced some performance problems, I’m sure you would have come across the KB 821268 which talks about tweaking maxWorkerThreads, maxIoThreads in the <processModel>, minFreeThreads, minLocalRequestFreeThreadsenCommunityServer 2007 SP1 (Build: 20510.895)