You want to prevent a user's password from expiring.
Open the Active Directory Users and Computers snap-in.
In the left pane, right-click on the domain and select Find.
Select the appropriate domain beside In.
Beside Name, type the name of the user you want to modify and click Find Now.
In the Search Results, double-click on the user.
Click the Account tab.
Under Account options, check the box beside Password never expires.
Click OK.
> dsmod user "<UserDN>" -pwdneverexpires yes
' This code sets a users password to never expire ' See Recipe 4.12 for the code for the CalcBit function ' ------ SCRIPT CONFIGURATION ------ strUserDN = "<UserDN>" ' e.g. cn=rallen,ou=Sales,dc=rallencorp,dc=com ' ------ END CONFIGURATION --------- intBit = 65536 strAttr = "userAccountControl" set objUser = GetObject("LDAP://" & strUserDN) intBitsOrig = objUser.Get(strAttr) intBitsCalc = CalcBit(intBitsOrig, intBit, TRUE) if intBitsOrig <> intBitsCalc then objUser.Put strAttr, intBitsCalc objUser.SetInfo WScript.Echo "Changed " & strAttr & " from " & _ intBitsOrig & " to " & intBitsCalc else WScript.Echo "Did not need to change " & strAttr & " (" & _ intBitsOrig & ")" end if
Setting a user's password to never expire overrides any password aging policy you've defined in the domain. To disable password expiration, you need to set the bit equivalent of 65536 (i.e., 10000000000000000) in the userAccountControl attribute of the target user.
Recipe 4.12 for more on modifying a bit-flag attribute and Recipe 6.24 for more on setting the userAccountControl attribute