INT 21 u - LAN Manager Enhanced DOS - LOCAL NetMessageBufferSend AX = 5F40h DS:DX -> NetMessageBufferSend parameter structure (see #01706) Return: AX = error code Format of LAN Manager NetMessageBufferSend parameter structure: Offset Size Description (Table 01706) 00h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. -> recipient name (name for specific user, name* for domain wide name, * for broadcast) 04h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. -> buffer 08h WORD length of buffer