Re: Tweak UI - Password encryption and autologon

From: Doug Knox MS-MVP (dknox_at_mvps.org)
Date: 08/30/05 

Date: Tue, 30 Aug 2005 16:15:01 -0400

You can't. The autologon feature expects to see a plaintext password. You're only option would be to write a custom GINA DLL for authentication that would know how to decrypt the stored password. 

-- 
Doug Knox, MS-MVP Windows Media Center\Windows Powered Smart Display\Security
Win 95/98/Me/XP Tweaks and Fixes
http://www.dougknox.com
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"Larry Williams" <LarryWilliams@discussions.microsoft.com> wrote in message news:84365F2D-EEF9-409F-85D4-B2813F7F4C6B@microsoft.com...
> I'm writing a program that will accept a userid and password to do an 
> autologon after a restart using the following registry entries:
> 
> HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon
> 
> DefaultUserName "your_username"
> DefaultPassword "your_password"
> AutoAdminLogon "1"
> 
> However, if for some reason my program doesn't run properly and remove the 
> userid/password when it's finished then I want to ensure that the password 
> can't just be read from the registry.  Therefore I need to know how to do the 
> same thing that Tweak UI does and store an encrypted version of the password.
> 
> Any ideas?