Enable Network Level Authentication for Remote Desktop on Windows XP machine

- Windows XP machine should have SP3 installed.
 - Go to Start - Run - type regedit press enter
 - From the left pane. Locate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
 - From right pane. Double click on 'Security Packages' one dialog box will open, leave all existing value  untouched. 
   Just add 'tspkg' at the end without quote. Click OK.
 - From left pane. Locate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders
 - From right pane. Double click on 'Security Providers' and in the dialog box add 'credssp.dll' at the end. 
   add a comma before typing credssp.dll. Click Ok.
 - Restart the computer for changes to take effect.
 - Now reconnect the remote desktop.

Thanks,
Durga