Helicon Ape is a unique module that emulates Apache execution
environment on Microsoft IIS. It literally implements Apache configuration model
(like .htaccess and httpd.conf files) and all most demanded Apache modules in
a single IIS add-on, not only making IIS compatible with Apache, but also extending
it’s functionality
An IIS 7 Module which implements .htaccess and httpd.conf compatability, per-site installation, URL rewriting and forward/reverse proxy modules, etc. There's a huge list of implemented modules including auth, cache, deflate, filter, headers, proxy, rewrite, and env ...
Application Pool Identities : Configuring Security : Installing and Configuring IIS 7.0 ...
AspNet doesn't run as ASPNET anymore, and you need to know that!