HTTP/1.1 Error 501 - Not Implemented

Article translations Article translations
Article ID: 247643 - View products that this article applies to.
This article was previously published under Q247643
Expand all | Collapse all

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:
Collapse this tableExpand this table
MethodProtocolRFCSection
CONNECTHTTP26169.9
COPYWEBDAV25188.8
DELETEHTTP26169.7
GETHTTP26169.3
HEADHTTP26169.4
LOCKWEBDAV25188.10
MKCOLWEBDAV25188.1
MOVEWEBDAV25188.9
OPTIONSHTTP26169.2
POSTHTTP26169.5
PROPFINDWEBDAV25188.1
PROPPATCHWEBDAV25188.2
PUTHTTP26169.6
TRACEHTTP26169.8
UNLOCKWEBDAV25188.11

MORE INFORMATION

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

Properties

Article ID: 247643 - Last Review: December 3, 2007 - Revision: 2.5
APPLIES TO
  • Microsoft Internet Information Services 6.0
  • Microsoft Internet Information Services 5.0
  • Microsoft Internet Information Services 7.0
Keywords: 
kbhttp501 kbnofix kbprb kbprod2web KB247643

Give Feedback

 

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com