I posted this question in the XML forum over a week ago and no responses. Though I would throw it out for more eyes to see...thanks.<BR><BR>QUESTION:<BR>I am trying to validate an XML doc that references an external schema located on the web. <BR><BR>When I paste my XML doc into Microsoft&#039;s XML validator and click "Validate" I get the error: <BR><BR>Error opening input file: &#039;http://www.someurl.com/XML/MySchema.xsd&#039;. Access is denied. <BR>File: http://www.someurl.com/XML/MySchema.xsd <BR>Line: 0, Position: 0, ErrorCode: 0x80070005 <BR><BR>Is anyone familiar with this error and how it can be resolved? <BR><BR>thanks <BR>B