Article ID: 247643 - View products that this article applies to.
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When you attempt to use an unknown method from an Internet client, the following error message occurs:
HTTP/1.1 501 Not Implemented
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:
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For more information on these topics, please see the information at the following: