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Permissions issue for custom web service in the _vti_bin folder.

Posted By:      Posted Date: September 02, 2010    Points: 0   Category :SharePoint
Hello, I have created a custom ASMX webservice that returns in JSON format so that I can call the data from JQuery on SharePoint page content.  I placed it in the ISAPI (_vti_bin) folder and it works just fine when I go directly to the web service and call it the way JQuery calls it: /_vti_bin/ServiceabilityCheck.asmx/GetSystemIDByZIPCode?ipaddress= Which returns: <string>{"SystemID":"5"}</string> When I try to call it from the SharePoint site with JQuery, it errors out and gives an unspecified error.  Fiddler shows {"Message":"Authentication failed.","StackTrace":null,"ExceptionType":"System.InvalidOperationException"} as the response from the web service call. When I have the webservice on an IIS web app outside of SharePoint, it works fine.  I have anonymous access enabled on the SharePoint site, why would it give me this error?John Chapman | Blog: http://www.johnchapman.name

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