U Pro enables NT users to replace the GINA logon with a fingerprint. It also provides fingerprint-enabled system lock and unlock, and the ability to replace all the passwords on a system with a fingerprint. Administrator options include allowing clients a choice of using a fingerprint or a password or allowing a fingerprint only, and allowing remote logon and remote registration. A Central Administration Tool included with the product utilizes a snap-in for the Microsoft Management Console that enables IS managers to centrally manage fingerprint security for individuals and groups. The Central Administration tool runs on an NT 4.0 workstation or server.
Users register one or more fingerprints.
A 300-byte template is extracted from the features of the print, and no fingerprint image is stored. The fingerprint templates are signed by a registration authority and can be stored centrally, locally, on a floppy disk, or on a smart card. Users can put their finger onto the Sensor from any angle, even upside-down, and still be recognized. The link between the Sensor and host is interrupt-driven meaning that the user does not have to hit a key to 'wake up' the Sensor before putting down a fingerprint. Because NT 4.0 does not support USB, as part of its new offering DigitalPersona has provided its own Windows NT 4.0 USB driver.