ISAPI_Rewrite is Apache mod_rewrite compatible URL rewriter for Microsoft IIS. It is used for search engine optimization, proxying another server's content, stopping hotlinking and strengthening server security. It supports distributed .htaccess configuration files, enhanced regular expressions and nearly all mod_rewrite features.

DeleGate is a multi-purpose application level gateway, or a proxy server which runs on multiple platforms (Unix, Windows, MacOS X and OS/2). DeleGate mediates communication of various protocols (HTTP, FTP, NNTP, SMTP, POP, IMAP, LDAP, Telnet, SOCKS, DNS, etc.), applying cache and conversion for mediated data, controlling access from clients and rou... More information