The following is a set of instructions that will help you disable authentication on your File Shares.

Registry Settings Required 

 [HKEY_LOCAL_MACHINE\Services\SMBServer\Shares]
    "UseAuthentication"=dword:0

[HKEY_LOCAL_MACHINE\Services\SMBServer\Shares\Share]
    "UserList"="someuser;"
    "ROUserList"=""
    "Type"=dword:0
    "Path"="Temp"

By default the system should have UseAuthentication = 1.
Boot a 6.0 image with the smb server.
Configure a share with a username and password (someuser/somepassword).
Restart the smb server.

You should now be able to access the share, someuser/somepassword will be
required.

Using the remote registry editor change the UseAuthentication dword to 0.
Restart the smb server.

You should now be able to access the share without the username/password
prompt.

Restarting the smb server with the command:  "services refresh SMB0:"