JSI Tip 2077. Passprop helps prevent break-ins.

Supplement 4 of the Server Resource Kit contains passprop.exe, a tool that helps you tighten security two ways:

PASSPROP \[/complex\] \[/simple\] \[/adminlockout\] \[/noadminlockout\]

    /complex            Force passwords to be complex, requiring passwords
                        to be a mix of upper and lowercase letters and
                        numbers or symbols.

    /simple             Allow passwords to be simple.

    /adminlockout       Allow the Administrator account to be locked out.
                        Once the account is locked out, as in response to an attempted break-in,
                        it can still log on interactively on domain controllers. 

    /noadminlockout     Don't allow the administrator account to be locked out.

If you type passprop without any parameter, it displays the current state of these settings.