2.2.25 Common Error Codes

Unless specified explicitly, the methods of the Internet Information Services (IIS) Inetinfo Remote Protocol MUST return 0 to indicate success and a nonzero implementation-specific value to indicate failure in the return code of the response. All failure values MUST be treated as equivalent for protocol purposes and SHOULD simply be passed back to the invoking application. A list of error codes that are potentially returned is available, as specified in [MS-ERREF].<7>