原始鏈接: https://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=3223434&SiteID=1

Hi Guys,

My goal is to run a program before user even log on to system in vista. Here are couple of links i have already went through. These codes are working fine when ever we are dealing with WinSta0\\default desktop when user is log on but my requirements are different.

http://www.codeproject.com/KB/vista-security/VistaSessions.aspx?fid=406624&sort=Position&noise=3&view=Quick&mpp=50&df=1

http://www.uvnc.com/vista/

http://www.codeproject.com/KB/vista-security/VistaSessionsC_.aspx

Steps that wosks fine
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1. Get the Active Console SessionId using WTSGetActiveConsoleSessionId
2. Since I need to launch the application under a system account, I use the token from Winlogon, since Winlogon runs under the system account. So I obtain the process ID of Winlogon and Duplicate the token.
3. Then I make sure I sent the startupinfo parameter lpDesktop to winsta0\Default since I need to launch my process there.
4. Then I use CreateProcessAsUser with Winlogon's duplicate token to launch my process into session 1.
5. That's all. I am done.

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It works! with vista !!

1. WTSGetActiveConsoleSessionId();
2. WTSQueryUserToken() for winlogon.exe winlogon pid
3. DuplicateTokenEx ()
4. AdjustTokenPrivileges ()
5. CreateProcessAsUser () lpDesktop to Winsta0\Winlogon

Fire the executable via taskscheduler (schtasks.exe) with SYSTEM priveleges.


Muhahahaha , and then if you dont see youre app in the winlogon desktop, try hitting ALT+TAB .... in the winlogon desktop.

I hope microsoft keeps this entry point for showing things on the secure desktop, cause we use it to show the unattended installation progress, I think the secure desktop should stay accessible in future releases.

(btw, I did not test it with FUS Fast User Switching, It worked with a domain account setting, this means Fast User Switching is not enabled).


Much appreciated,

 mon11.

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Fast User Switching is enabled for domain accounts in Vista by default, so that's not necessarily true.

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AndyCadley,
You are right, I tested it, it works also with FUS.

 其他連接:

[1]  http://blogs.msdn.com/ntdebugging/archive/2007/01/04/desktop-heap-overview.aspx

[2]  http://blogs.technet.com/askperf/archive/2007/07/24/sessions-desktops-and-windows-stations.aspx