In the NT Server 4.0 Resource Kit is a utility Passprop.exe
which is supposed to limit multiple password failures on administrator. I have lauched this product manually and tried several wrong passwords and I never became locked out.
( Please not I made the changes inside of user manager for Domains) I loaded the executable from within Startup and here again it failed to work. What I am tring to do is limited the number of times a person can try multiple passwords on administrator.