1) SET ON HOST "A" the IP: 192.168.200.40 / SUBNET: 255.255.255.224
2) SET ON HOST "B" the IP: 192.168.200.60 / SUBNET: 255.255.255.224
3) BE SURE YOU HAVE THE "CLIENT FOR MICROSOFT NETWORK" on both hosts activated
4) ON HOST "A" CREATE A SHARE. In this template it's "FILES"

5) READY, TYPE ON HOST "B" IN THE EXPLORER ADRESS BAR "\\192.168.200.40" and now you see your share

HOST/SUBNET CAN BE CHANGED (192.168.0.1/255.255.255.0), I USED A SMALL SUBNET FOR ONLY 30 adresses (192.168.200.32 is multicast/192.168.200.33-63 free ip adresses) because it's faster (smaller multicast)