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A previous user's old password is visible to a third-party Gina.dll filebecause the Microsoft Msgina.dll file does not reset the old password flagand the old password string.
When a user changes his or her password because of the "PasswordExpiration" or "User Must Change Password During Next Logon" policy during the logon process, MSGINA keeps a flag indicating that the password has changed and stores the old password. When the next user logs on, this flag is not reset and the previous user's old password is stored, even though the new logged on user did not change his or her password.
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition or the individual software update. For information on obtaining the latest service pack, please go to:
152734 how to obtain the latest windows nt 4.0 service pack
For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web: