2.2.3.6.21 COMM_CO_EXT_WIN2K
The COMM_CO_EXT_WIN2K element contains a CO_RECORD_EXTENSION_WIN2K structure, which is an extension to the CHANGE_ORDER_COMMAND structure that is compatible with down-level clients (NTFRS_COMM_MINOR_3). The structure of the COMM_CO_EXT_WIN2K packet element is as follows.
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typedef struct _COMM_CO_EXT_WIN2K { USHORT CommType; ULONG Length; ULONG DataLength; CO_RECORD_EXTENSION_WIN2K Data; } COMM_CO_EXT_WIN2K, *PCOMM_CO_EXT_WIN2K;
CommType: A 16-bit, unsigned integer that specifies the type of this COMM_PACKET element. MUST be 0x0016.
Length: A 32-bit, unsigned integer that indicates the length in bytes of the data following the Length field. MUST be 0x0000002C.
DataLength: A 32-bit, unsigned integer that indicates the length in bytes of the data following the DataLength field. MUST be 0x00000028.
Data: The CO_RECORD_EXTENSION_WIN2K structure being transmitted (see section 2.2.3.3).