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Service Changes Logon Background On Boot

I have a service that makes a background image comprised of different information (Name, IP, MAC, etc).

My intention is to have the service change the HKEY_USERS\.DEFAULT\Control Panel\Desktop\Wallpaper key before winlogon accesses it when displaying the login screen (Not welcome screen). But it doesn't seem to do it fast enough. If I reboot again the wallpaper will show, but it will be one reboot behind if you get my drift.

SystemParametersInfo() with SPI_SETDESKWALLPAPER doesn't seem to work either.

Any ideas?

Brian Pierce

I'm a bit confuded here - how can you show the name before the user has logged on ?
Most people use simply BGINFO to display this info AFTER logon

ThievingSix

ASKER

Computer Name and User Name. Both resolve from the service, the user name being SYSTEM. The issue is that the service doesn't change the registry value fast enough.

systan

hi ThievingSix;

>>The issue is that the service doesn't change the registry value fast enough.
Have you set your service configuration to 1

Boot=0
System=1
Automatic=2
Manual=3
Disabled=4

or try to rename your service alphabitically starting from a;
eq.,
amyservice
or it can be
1myservice

ThievingSix

ASKER

I tried both those to no avail. Even tried fumbling and changing the service type to Device/File System so I could set the StartType to Boot instead of System/Automatic.

I know that it can be done. Like, for example, Auslogics registry defrag. Boots before the registry is even loaded.

ThievingSix

ASKER

Which makes me think, if a program is running even before the registry is loaded, how is it run. Does it replace itself as the bootloader?

systan

All startups come from registry.
>>Does it replace itself as the bootloader?
No, it doesn't but it adds to another line, you can try that.

STARTUP ORDER FOR WINDOWS NT4/2000/XP
1. BootExecute
HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\BootExecute

{
autocheck autochk *
YOU can add your program here.
}

2. Services
3. User enters a password and logon to the system
4. UserInit
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit
5. Shell
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell
6. All Users-RunOnce
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
7. All Users-Run
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
8. All Users-RunOnceEx
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnceEx
9. All Users-RunEx
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunEx
10. Current User-RunOnce
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
11. Current User-Run
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
12. Current User-RunOnceEx
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnceEx
13. Current User-RunEx
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunEx
14. Common Startup Folder
15. Startup Folder

ASKER CERTIFIED SOLUTION

systan

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ThievingSix

ASKER

I haven't tried this yet, but I will as soon as I can.

ThievingSix

ASKER

Haven't had time to test, but I'm pretty sure that this is the right direction for the answer.

systan

Thanks ThievingSix

Delphi Rocks, Now Lazarus