NOTE: A few people have faced booting problem after applying this tweak. So please use it at your own risk. It worked fine at our end.

Windows Vista shows a nice ORB animation aka Pearl animation just before the Welcome screen. It looks like following image:

Microsoft removed this animation from Windows 7 as it takes a few seconds to show the animation.
If you are using Windows Vista and want to remove the startup ORB animation, this article will help you.
The ORB animation is shown using a system file "authui.dll" which is present in "%windir%\System32" folder. This file contains all resources needed for the animation.
"PacMani" @ DA has patched "authui.dll" file to remove the animation. You just need to download following ZIP file, extract it and run "Patch System Files.bat" file.
It'll replace the existing "authui.dll" file with a patched one and you'll no longer see the ORB animation just like Windows 7.
If you want to restore the animation in future, simply run "Restore System Files.bat" file.
PS: It only works for Windows Vista 32-bit editions.
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Carlos
Awesome! Too bad I don't use Vista anymore.
Kris
It does not go to my login screen anymore. It only shows a black screen. What should I do? I need an answer immediately. I used Windows Vista Home Premium 32 bit version. Sincerely, Kris
Jono
hey kris dont install everything posted on the internet ya retard
Tom
Good idea, too bad it doesn´t work. The author mentioned on his site that he has fixed some issue, but either he didn´t or he just uploaded the non-working version again =) And now I´m tired of restarting just because of trying this, so this supposedly "3 second less boot-time"- thing now goes to the "crap I´ll never try again" category.
Kris
To those who want to try this, don't attempt! It is not working, I found a solution for my problem, and that's a system restore,haha,,I'll not try this anymore again,,
Mifas
Nice Guide VG
Paultx
Didn't work here, too. Orb still alive.
Paultx
Tried Run as Administrator TNA. The cmd box does not even appear...
VG
This article was posted only after testing the files and it worked absolutely fine here. It might be possible that the file was made only for Vista SP2? Not sure.
Paultx
Most likely not: I tested it on a Vista SP2 system.