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Q247643: HTTP/1.1 Error 501 - Not Implemented

Article: Q247643
Product(s): Internet Information Server
Version(s): winnt:5.0
Operating System(s): 
Keyword(s): kbOSWin2000 kbiis500prod2web kbhttp501 kbProd2Web
Last Modified: 31-JUL-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Internet Information Services version 5.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

When you attempt to use an unknown method from an Internet client, the following
error message occurs:

  HTTP/1.1 501 Not Implemented

CAUSE
=====

This behavior is by design. Internet Information Services (IIS) only supports
the methods defined in "RFC 2616 - Hypertext Transfer Protocol -- HTTP/1.1" and
"RFC 2518 - HTTP Extensions for Distributed Authoring -- WEBDAV." The methods
are listed in the following table:

  
  +---------------------------------------+
  | Method    | Protocol | RFC  | Section | 
  +---------------------------------------+
  | CONNECT   | HTTP     | 2616 | 9.9     | 
  +---------------------------------------+
  | COPY      | WEBDAV   | 2518 | 8.8     | 
  +---------------------------------------+
  | DELETE    | HTTP     | 2616 | 9.7     | 
  +---------------------------------------+
  | GET       | HTTP     | 2616 | 9.3     | 
  +---------------------------------------+
  | HEAD      | HTTP     | 2616 | 9.4     | 
  +---------------------------------------+
  | LOCK      | WEBDAV   | 2518 | 8.10    | 
  +---------------------------------------+
  | MKCOL     | WEBDAV   | 2518 | 8.1     | 
  +---------------------------------------+
  | MOVE      | WEBDAV   | 2518 | 8.9     | 
  +---------------------------------------+
  | OPTIONS   | HTTP     | 2616 | 9.2     | 
  +---------------------------------------+
  | POST      | HTTP     | 2616 | 9.5     | 
  +---------------------------------------+
  | PROPFIND  | WEBDAV   | 2518 | 8.1     | 
  +---------------------------------------+
  | PROPPATCH | WEBDAV   | 2518 | 8.2     | 
  +---------------------------------------+
  | PUT       | HTTP     | 2616 | 9.6     | 
  +---------------------------------------+
  | TRACE     | HTTP     | 2616 | 9.8     | 
  +---------------------------------------+
  | UNLOCK    | WEBDAV   | 2518 | 8.11    | 
  +---------------------------------------+

MORE INFORMATION
================

For more information on these topics, please see the information at the
following:

- RFC 2616 - Hypertext Transfer Protocol -- HTTP/1.1
- RFC 2518 - HTTP Extensions for Distributed Authoring -- WEBDAV

Additional query words: prod2web

======================================================================
Keywords          : kbOSWin2000 kbiis500prod2web kbhttp501 kbProd2Web 
Technology        : kbiisSearch kbiis500
Version           : winnt:5.0
Issue type        : kbprb
Solution Type     : kbnofix

=============================================================================

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