IIS 7 and Above
HTTP Error Code 405 method not allowed
Re: HTTP Error Code 405 method not allowed
Oct 09, 2008 07:25 PM|davcox|LINK
Actually, just look into your w3c log files and you'll see what "Method" is being sent to IIS; then make sure that the handler for your application accepts that Verb. Also, if the URL isn't to an actual file or if it's to a directory without an appended
slash, you may get the 405 error.
Another way to debug this is to use ethereal or some network monitor to see what is actually getting sent.