Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Network
Parameter: MinPwdLen
Type: string
Description:
Set this value to minimum password length required. Useful to help stop people from using trivial passwords.


Registry key: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Network
Parameter: AlphanumPwds
Type: string
Description:
Set this value to 1 to require alphanumeric passwords, i.e. a password made from a combination of alpha (A, B, C...) and numeric (1, 2 ,3 ...) characters.


Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Parameter: PasswordExpiryWarning
Type: string
Description:
This entry specifies the number of days that a warning message is displayed before the user's password expires.