Here's an interesting trick in order to make the right advertising for your company within the "heart" Windows System
Create a TXT file with the name OEMINFO.TXT where you write the following:
Manufacturer = Company Name
Model = computer name eg. dragon
[Support Information]
Line1 = Company Name
Line2 = address
Line3 = Phone
Line4 = bla, bla (you can use Line how match you like)
Make your company logo in BMP format 160x120 pixels in 256 colors and save it as OEMLOGO.SYS.
Both files (oeminfo.txt and oemlogo.sys) switch to the folder Windows \ System. Reset the machine and right click on My Computer and select Properties. There you are advertising!