Int 2F Fn 7A4F U - Novell Netware - Snmp.exe - Installation Check [N]
AX = 7A4Fh
BX = 0001h
Return: AX = 7AFFh if installed
Note: this call conflicts with RARPD.EXE (both SNMP and RARPD are supplied
with LAN Workplace for DOS!), such that running SNMP will uninstall
RARPD as SNMP checks whether it is already installed!
See Also: AX=7A4Fh"RARPD",AX=7A4Fh/BX=0002h