INT 2F - Novell NetWare - TBMI v1.1+, shell v3.01d - INSTALLATION CHECK???
AX = 7AFFh
BX = 0001h
CX = 4E65h ("Ne")
DX = 7457h ("tW")
Return: AL = FFh if installed
CX = ??? (8000h)
SI = ??? (or -> ???) (0002h and 0007h seen)
ES:DI -> IPX far call handler
ES:DX -> 6-byte data area ???
Note: this function is also supported by IPXODI, but IPXODI v2.12 does not
return ES:DX
SeeAlso: AX=7AFFh/BX=0000h