Thursday, July 06, 2006

WebService returning 500 error

Was getting webservices returning 500 errors.

First step was to turn off "Friendly Error Messages" in IE to see the error looked more like this;

"File or assembly name #######.dll, or one of its dependencies, was
not found."

Found on a couple sites this is a problem with security on the /windows/temp directory becuase the XML Serializer is writing something there. I don't think most people see this becuase they haven't mucked with the default IIS Setup of having anonymous users using the IIUSR_DFLT account. I'm going to point that back and hopefully the deployment of this webservice will not cause additional problems.

M@

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