HP Remote Graphics Software 5.4.0 User Guide

GINA module rather than the default msgina.dll as described above. There are three ways to enable
the hprgina.dll module to load a custom GINA module:
3.1.2.12.1 1. Install time specification of the custom GINA module
A custom GINA module can be chained by the hprgina.dll at install time. This is the preferred method.
The installer will bring up a GUI that allows the Easy Login GINA module (hprgina.dll) to be enabled,
as well as provides a text box to enter the name of the custom GINA module. The name of the custom
module is all that is needed, provided it is installed in the C:\WINDOWS\system32 directory. If the
custom module is installed elsewhere, the full file path needs to be entered.
3.1.2.12.2 2. Using the rgadmin tool to specify a custom GINA module
The rgadmin tool can be used to chain a custom GINA module. When Enable Easy Login is
selected, the associated text entry box Chained GINA Dll is un-greyed out. Enter the name of the
custom GINA module in the text box, and click Apply. Using the rgadmin tool to specify a custom
GINA module is preferred over the manual method, described next.
3.1.2.12.3 3. Manually enabling hprgina.dll to load a custom GINA module
To manually enable the hprgina.dll module to load a custom GINA module, create a new registry key,
ChainedGinaDLL, with the value of the key containing the name of the chained custom GINA module.
Perform steps 1–6 shown above (the restart will be done below) plus the following three steps to chain
custom modules:
1.
Create the ChainedGinaDLL registry key. Create the key as type REG_SZ (a string type). The full
path of the key is:
HKEY_LOCAL_MACHINE\Software\Hewlett-Packard\Remote Graphics Sender\ChainedGinaDLL
2.
Set the value of the new ChainedGinaDLL key to the name of the custom GINA module. For
example, if the name of the custom GINA module is foogina.dll, then the value of the key should
be foogina.dll. The value should match the string originally discovered in the registry key GinaDLL.
Confirm the spelling before closing.
3.
Restart the computer.
When the RGS hprgina.dll is loaded by WinLogon, hprgina.dll will load the chained GINA
module foogina.dll. The hprgina module then chains all GINA requests to the foogina.dll module.
If the custom foogina.dll is also a chaining GINA module, foogina.dll, in turn, chains itself to the
msgina.dll module. Three GINA DLLs will be loaded as part of the WinLogon.exe process: (1)
hprgina.dll, (2) foogina.dll, and (3) msgina.dll.
3.1.2.12.4 Setting the Local Security Policy
The local security policy "Interactive logon: Do not require CTRL-ALT-DEL" must be disabled to support
Easy Login. This can be set in the Windows "Local Security Settings" under "Security Options." The
RGS Diagnostics Tool programmatically detects if this local security policy is set correctly. See
Using the
RGS Diagnostics Tool on Windows on page 55 for more information.
NOTE: Creating the GinaDLL registry key disables Window's "Fast User Switching" and "Welcome
Screen" features.
ENWW
Installing RGS on Windows
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