Int 68 Fn 05  - Appc/pc - Transfer Message Data                            [N]

   AH = 05h
   DS:DX -> control block (see below)

Return: control block updated

Format of control block:
Offset Size    Description
 00h 12 BYTEs  reserved
 0Ch   WORD    1C00h (verb "Transfer Message Data")
 0Eh   BYTE    00h user defined
       01h NMVT
       02h alert subvectors
       03h PDSTATS subvectors
 0Fh  5 BYTEs  00h
 14h   DWORD   (big-endian) return code (see AH=01h/SF=1B00h)
 18h 12 BYTEs  00h
 24h   BYTE    if bit 0 clear, add correlation subvector
       if bit 1 clear, add product set ID subvector
       if bit 2 clear, do SYSLOG
       if bit 3 clear, send SSCP_PU_SESSION
 25h   BYTE    00h
 26h   WORD    length of data
 28h  N BYTEs  data