3.1.5.15 R_IISEnumerateUsers (Opnum 14)
The R_IISEnumerateUsers method is called by the client. In response, the server returns a list of clients connected to the specified Internet protocol server.
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DWORD R_IISEnumerateUsers( [in, string, unique] INET_INFO_IMPERSONATE_HANDLE pszServer, [in] DWORD dwServiceId, [in] DWORD dwInstance, [in, out] LPIIS_USER_ENUM_STRUCT InfoStruct );
pszServer: The custom binding handle for the target system, as specified in section 2.1.1. The value MUST NOT be used by the server implementation.
dwServiceId: The identifier for the specified Internet protocol server, as specified in section 2.2.2.
dwInstance: The ID of the Internet protocol server instance whose users are being enumerated.
InfoStruct: The pointer to an IIS_USER_ENUM_STRUCT that contains the list of active users for this server.
Return Values: The method returns 0 (ERROR_SUCCESS) to indicate success; otherwise, it returns a nonzero error code, as specified in [MS-ERREF] section 2.2 or[MS-ERREF] section 2.3.1. The most common error codes are listed in the following table.
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Return value/code
Description
0x00000002
ERROR_FILE_NOT_FOUND
The system cannot find the specified file.
0x00000005
ERROR_ACCESS_DENIED
Access is denied.
0x00000426
ERROR_SERVICE_NOT_ACTIVE
The service is not running.
Exceptions Thrown: No exceptions are thrown beyond those thrown by the underlying RPC protocol, as specified in [MS-RPCE].
In response to this request from the client, the server MAY return a list of the clients connected to the protocol server if the return code indicates success.<15>