INT 62 - Cswitch - SEND MESSAGE AH = 0Bh CX = number of bytes to write DS:SI -> buffer DX = queue number (0-63) Return: AX = result/message size 0000h no message was on queue FFFEh triggered by something arriving, redo the call FFFFh bad queue number else number of bytes in message SeeAlso: AH=0Ah"Cswitch",AH=0Ch"Cswitch"