Why do I get 'HTTP 405 - Resource Not Allowed' errors?
You can get this when your form doesn't have a name, or a method -- particularly in Netscape.
You can get this if you try to submit a form to an HTM, HTML or other 'static' page type.
You can get this when your form doesn't have an action parameter, or it is left blank, if the form is in the default document *and* the user accessed the file as http://yoursite/yourfolder/ instead of http://yoursite/yourfolder/default.asp. See KB #216493 for more information (and not ethat you don't have to be using a DTC for this symptom to appear).
If you are using Remote Scripting, see KB #191276.
If you are using Visual InterDev's preview/design modes, switch to your browser. Don't use your editor to preview your code, use the tool your users will be using!
If you are using Posting Acceptor to upload files, make sure IUSR has full permissions on cpshost.dll; or, better yet, use a real upload solution (Article #2189).
You can get this if you have FrontPage Server Extensions installed, and the _vti_bin lacks 'execute' permissions. See KB #238461 for more information. Also, see KB #206046 and KB #229295 for other FrontPage-related articles.
A rare case is searching Option Pack 4.0 documentation (see KB #186809).
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