The process of creating a custom “Manufactured and Supported by” logo involves two parts.

1) First you have to create a logo with the size not bigger than 180×114 pixels. Save it as a bitmap file with the name oemlogo.bmp. Save the file inside C:\WINDOWS\system32 subfolder.

2) Create an configuration file with a text editor and save it as oeminfo.ini. Save this file also inside C:\WINDOWS\system32 subfolder. My configuration file looks like this:

[general]
Manufacturer=blah
Model=

[Support Information]
Line1= Windows 2003 is better Than Windows Vista
Line2= Osx is better than Windows 2003
Line3= Ubuntu is better Than OSX