INT 2F - MS WINDOWS - "VNETBIOS" VIRTUAL DEVICE API
AX = 1607h
BX = 0014H (VxD identifier of "VNETBIOS")
Return: ES:DI -> 128-byte table specifying VNETBIOS actions for each NetBIOS
command code (see below)
Note:   VNETBIOS (Virtual NetBIOS) calls this function to determine whether
the NetBIOS has an extensions Windows should know about
SeeAlso: AX=1607h/BX=0015h

Values for action code:
00h    "VN_Unknown" unknown command
04h    "VN_No_Map"  no memory mapping necessary
08h    "VN_Map_In"  input buffer is quickly used, so no global mapping needed
0Ch    "VN_Map_In"  output buffer is quickly used, so no global mapping needed
10h    "VN_Map_In_Out"  buffer is quickly used, so no global mapping needed
14h    "VN_Chain_Send"  the chain-send command
18h    "VN_Cancel"     special case for cancel command
1Ch    "VN_Buffer_In"  buffer is incoming
20h    "VN_Buffer_Out" buffer is outgoing
24h    "VN_Buffer_In_Out" buffer used for both incoming and outgoing data

See also: 2F1607

2F1607BX0014 - MS WINDOWS - "VNETBIOS" VIRTUAL DEVICE API