With the new multiple password policies in this service pack, you can require more than one administrator password when you are changing the enrollment settings from X.509 V1 certificates to X.509 V1 and V3 certificates, or to X.509 V3 certificates only. You can also require more than one administrator password to import or untrust a certificate from another Certificate Server. You must use the version of the Microsoft Exchange Administrator program included with Microsoft Exchange Server 5.5 Service Pack 1 to change the password policies to use these new features. Older versions of the Administrator program cannot access the Multiple Password Policies property page.