Extended Gina

This DLL extends the standard GInA DLL from NT.
It mainly adds

This DLL replaces the standard GInA DLL, executes, then points back to (executes) the original one.

Installation

The DLL must be copied onto the local hard disk and must be set up in the registry.

The key HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon of type REG_SZ must point to the absolute path of the file XGINA.DLL.

Key	Type	Use	Permitted values	Default value
OriginalGinaDLL	REG_SZ	Original Gina to point back to	absolute path name	msgina.dll (default NT one)
Debug	REG_DWORD	Debugging flag (adds internal tracing)	0 or 1	0
LogFile	REG_SZ	Log file	absolute path name	none
Timeout	REG_DWORD	Max. time given to a script to execute	number of seconds	60
Startup\Script	REG_SZ	Startup Script	absolute path name	none
Logon\SystemBefore\Script	REG_SZ	Logon Script in Local System context	absolute path name	none
Logon\User\Script	REG_SZ	Logon Script in Local System context	absolute path name	none
Logon\SystemAfter\Script	REG_SZ	Logon Script in User context	absolute path name	none
Logoff\SystemBefore\Script	REG_SZ	Logon Script in Local System context	absolute path name	none
Logoff\User\Script	REG_SZ	Logon Script in Local System context	absolute path name	none
Logoff\SystemAfter\Script	REG_SZ	Logon Script in User context	absolute path name	none
Shutdown\Script	REG_SZ	Shutdown Script	absolute path name	none

Remarks:

All values of type REG_SZ may also be of type REG_EXPAND_SZ if needed to be expanded.
Each Script value may be completed by a LogFile and / or a TimeOut value that overwrites the default one for this script only.

An example of a policy template file (XGINA.ADM) is provided.