Computers without AD

Hi All,

We have around 50 computers connected through network switch i.e. there is no active directory (AD) in place. We want to use MAP tool 8.0 to collect inventory data. We have seen somewhere  if there is no AD, we can use the "Windows networking protocol" under discovery method. But when we try , it is asking for "username/password" in "All computer credential" section if we didn't give the finish button is disabled. We don't have common credential for all PCs. How to do the inventory.

Thanks in advance,

Arun

Thanks in advance