Patent ID: 8010850

Claim:
An article comprising a computer-readable storage medium that stores instructions, the computer-readable storage medium not consisting of a transitory signal, execution of the instructions by a computing device causing the computing device to: send an authoring request to a server, the authoring request complying with a WebDAV protocol, the authoring request instructing the server to perform a resource management operation on a file; and send an extended error code and an extended error text string to an application program after the computing device receives a response message from the server, the response message complying with the WebDAV protocol, the response message comprising a status line and an extended error information header line, the status line defined in the WebDAV protocol, the extended error information header line defined in an extension to the WebDAV protocol, the extended error information header line comprising a field name and extended error information, the extended error information including the extended error code and the extended error text string, the extended error code comprising a number that provides information about a cause of a file system error that occurred during performance of the resource management operation on the file, the extended error text string comprising explanatory text as to the cause of the file system error, the extended error code and the extended error text string not defined in either the HTTP protocol or the WebDAV protocol.