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GINA is a [[dynamically linked library]] that is loaded in the context of the [[Winlogon]] process when the machine is started. It is responsible for handling the [[secure attention key|secure attention sequence]] (SAS), typically [[Control-Alt-Delete]], and interacting with the user when this sequence is received. GINA is also responsible for starting initial processes for a user (such as the [[Windows Shell]]) when they first log on.
In [[Windows Vista]], GINA has been entirely replaced by '''Credential Providers''', which allows for significantly more flexibility in supporting multiple credential collection methods. GINA libraries will not work with Windows Vista.▼
==Overview==
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Support for replacable GINA DLL's was introduced with Windows NT Server 3.51 and Windows NT Workstation 4.0 SP3. Successive versions of Windows have introduced additional functionality into Winlogon, resulting in additional functionality that can be implemented by a replacement GINA. Windows 2000, for example, introduced support for displaying status windows about the current state to the user (e.g. "Applying computer settings..."), and starting applications in the user's context; this facilitates restarting [[Windows Explorer]] automatically if it crashes, as well as starting the Task Manager.
▲In [[Windows Vista]], GINA has been entirely replaced by '''Credential Providers''', which allows for significantly more flexibility in supporting multiple credential collection methods.
==See also==
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