IIS modules and Isapi filters for URL rewriting. Products include Isapi Rewrite which is a replacement for mod_rewrite on Windows Servers running IIS.

Change the URL scheme of web site transparently for users and web applications, uses regular expressions to match an incoming request and to change request_uri. The expression engines allows the handling of many different requests though a single rule.

Developers of Microsoft IIS Web software tools for acceleration, security, and usability.

Developer of ISAPI filters and COM objects for IIS, including IIS Tracer, URL Replacer, and PureASP Upload.

An IIS plug-in that makes the SMTP service immune to reverse NDR attacks.