+ Apache is the Idol of IIS 7.0 +

M$ is learning a few tricks from Apache for the next release of IIS, version 7.0. Specifically, the IIS feature set has been broken down into modules to reduce overhead. Modules can be changed on the fly, without restarting the Web server. Also, the IIS metabase has been completely dropped in favor of easily editable XML configuration files. Each Web application can have its own config file that overrides the system-wide configuration.