In truth, you don't need the Easy Search Utility to map your DNS-323 volume in Windows. You can create a manual network map. Right-click in My Computer and select Map Network Drive. Next select a free drive letter and enter \\192.168.x.y\Volume_1 where "192.168.x.y" is replaced with your DNS-323 IP address.
If you have more than one volume, then repeat the above procedure with a different drive letter and "Volume_2".