INT 21 u - LAN Manager Enhanced DOS - DosWriteMailslot AX = 5F52h BX = class CX = length of buffer DX = priority ES:DI -> DosWriteMailslot parameter structure (see #01726) DS:SI -> mailslot name Return: CF clear if successful CF set on error AX = error code SeeAlso: AX=5F4Fh,AX=5F50h,AX=5F51h Format of LAN Manager DosWriteMailslot parameter structure: Offset Size Description (Table 01726) 00h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. timeout 04h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. -> buffer