Apache emulator for IIS 7. Implements .htaccess configurations inside IIS.
Includes following modules: mod_rewrite, mod_proxy, mod_auth, mod_gzip, mod_headers, mod_cache, mod_expires, mod_developer, mod_replace, mod_so, mod_speling, mod_usertrack and others.
35+ total modules available.
Free version of Ape allows installation on up to three web sites on server at no cost. No time or feature limitations.

Features:
1. powerful Apache-compatible URL rewriting;
2. compatible with Apache modules configuration;
3. extensive forward and reverse proxy instruments;
4. comprehensive authorization capabilities not bound to Windows accounts;
5. flexible and powerful content compression functions;
6. all-round HTTP-level web developer toolset;
7. lighting fast server and client cache features;
8. hotlink (content leeching) protection;
9. Search Engine Optimization functions;
10. on-the-fly content altering.

Benefits:
1. users can move their Apache web sites to IIS without modification;
2. user-friendly interface and plain text configurations (no XML!);
3. unprecedented compatibility with PHP-based applications;
4. per-site installation without hosting administration involvement/assistance;
5. current PHP and many other Unix-style web applications can be easily configured for IIS;
6. flexible user permissions control (as they are implemented in Apache);
7. reverse and forward proxy features available for your web server;
8. low level controls over web site behavior, optimization, security and performance;
9. protection from DOS and injection attacks.

The license of this software is Freeware, you can free download and free use this web server software.