The process is different depending on the client operating system.
Windows XP clients:
Change the following registry value to "MSGina.dll" instead of "NTGina.dll" and reboot.
Change the value back to "NTGina.dll" to restore the client.
Vista and Windows 7 clients:
Run this command as Administrator:
regsvr32 "%PROGRAMFILES%\Pharos\Bin\SUCredentialProvider.dll" /u
To re-enable the client, run: