I, Genius the Great

Last night I have managed to find a way of totally stopping Windows XP from starting up, by just simply editing the boot logo.
The file in question is called Boot.bmp and is found in C:\Windows\System32
Technically speaking there is yet more bugware in Windows, since the operating system hangs from a simple 640x480 image with 16 colours.
This is also some great security :)

The lesson of the story is: Don't use the OS/2 format jsut to see if that actually works, since all the other attempts as per recommendation did not work.