INT 21 - Novell NetWare v4+ - GET OS VERSION INFORMATION AX = F27Bh subfn 0Dh CX = length of request buffer in bytes DX = length of reply buffer in bytes DS:SI -> request buffer (see #02507) ES:DI -> reply buffer (see #02508) Return: AL = status (see #02860 at INT 2F/AX=7A20h/BX=0000h) reply buffer filled