Helicon Ape

Helicon Ape
Developer(s) Helicon Tech
Stable release / 22 November 2010
Operating system Microsoft Windows
Type Web server
License Proprietary
Website http://www.helicontech.com/ape/

Helicon Ape is the piece of software by Helicon Tech destined to introduce Apache functionality on IIS web servers. Helicon Ape is realized as an ASP.NET module for IIS 7 (and higher), implementing functionality of more than 35 Apache modules, that allows using Apache configurations (leaving syntax intact) on IIS and extend standard IIS capabilities.[1]

Aside from realization of Apache modules Helicon Ape possesses some proprietary modules for server-side debugging and profiling (mod_developer), SEO optimization (mod_linkfreeze) and hotlinking protection (mod_hotlink).[2]

Helicon Ape has a GUI interface (see the screenshot) that allows easy configs editing (directives auto-completion and spell-check features supported) and browsing, includes a regular expressions tester and a password generation utility.[3]


Here's the list of modules currently supported in Helicon Ape:

  • mod_asis - sends files that contain their own HTTP headers
  • mod_auth_basic - enables HTTP Basic Authentication functionality
  • mod_auth_digest - enables MD5 Digest Authentication functionality
  • mod_authn_anon - configures anonymous users access to authenticated areas
  • mod_authn_dbd - provides authentication based on user look-up in SQL database
  • mod_authn_default - rejects whatever credentials if no authentication is set
  • mod_authn_file - provides authentication based on user look-up in plain text password file
  • mod_authz_default - rejects any authorization request if no authentication is configured
  • mod_authz_groupfile - allows or denies access to particular areas of the site depending on user group membership
  • mod_authz_host - allows access control to particular parts of web server based on hostname, IP address or other characteristics of the client request
  • mod_authz_user - allows or denies access to portions of the web site for authenticated users
  • mod_cache - allows caching local or proxied content
  • mod_core - provides the use Helicon Ape core features
  • mod_dbd - allows managing of SQL database connections
  • mod_deflate - enables server output compression
  • mod_developer - brings extensive requests debugging functionality
  • mod_disk_cache - allows the use of disk-based storage engine for mod_cache
  • mod_env - grants control over the environment provided to CGI scripts and SSI pages
  • mod_evasive - protects your site(s) from HTTP DoS/DDoS attacks and brute force attacks
  • mod_expires - sets Expires HTTP header and max-age directive of Cache-Control HTTP header in server responses in relation to either the time the source file was last modified, or to the time of the client access
  • mod_filter - allows the use of context-sensitive content filters
  • mod_gzip - offers HTTP responses compression
  • mod_headers - modifies HTTP request and response headers
  • mod_hotlink - protects the content from hotlinking
  • mod_linkfreeze - changes links on pages to SEO-friendly format
  • mod_log_config - enables custom logging
  • mod_logio - logs input and output number of bytes received/sent per request
  • mod_mem_cache - allows the use memory-based storage engine for mod_cache
  • mod_mime - associates requested filename's extensions with the file's behavior (handlers and filters) and content (mime-type, language, character set and encoding)
  • mod_proxy - grants forward and reverse proxy functionality
  • mod_replace - allows editing of HTML body, HTTP request and response headers
  • mod_rewrite - rewrites requested URLs on the fly based on regular-expressions-based rules and various conditions
  • mod_setenvif - sets environment variables depending on whether different parts of the request match specified regular expressions
  • mod_so - emulates loading modules functions
  • mod_speling - corrects misspelled URLs by performing case-insensitive checks and allowing one misspelling
  • mod_usertrack - tracks and logs user activity on the site using cookies[4]


Helicon Ape was designed specifically to benefit from all advantages of IIS 7 architecture, so 100% operability is ensured only on IIS 7 and higher (Windows Vista, Windows Server 2008, Windows 7 and Windows Server 2008 R2).[5] On IIS6 (Windows Server 2003) Helicon Ape offers slightly limited functionality (see compatibility chart).[6]


There are three license types available for Helicon Ape:

  • Free - for up to 3 sites; costs nothing
  • Per-site - for one extra site; costs $25
  • Server - for unlimited number of sites; costs $95; includes 45-day Trial period.[7]

See also


External links

  • Helicon Ape official page
  • Helicon Tech official blog
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