I have installed 9.2.1.2 and found that a Windows specific account ie."Network Service" cannot be added to a file or folder on FreeNAS, this is a major problem for windows servers that must have access via some system account, specifically a fax server in this case. Freenas does not allow usernames containing a space so I cannot simply create the user in FreeNAS then assign it. When attempting to assign the Windows system account "Network Service" windows immediately throws an error "Unable to save permission changes. The Request is not supported."