Tip 5 : Customize Windows XP's General tab

Customize Windows XP's General tab
It's easy to customize Windows XP's General tab in
the System Properties dialog box with your support
contact information and your company's logo just by
using Notepad. Here's how:
1. Launch Notepad and type the following text,
replacing the dummy information shown here with
your own:
[General]
Manufacturer=Ali's Computers
Model=5551212
[Support Information]
Line1=Call 123-1212 for technical support
Line2=Call 123-1212 for technical support
Line3=Call 123-1212 for technical support
Line4=Call 123-1212 for technical support
2. Save the file in the C:\Windows\System32 folder
as Oeminfo.ini.
3. To add your logo to the General tab, create a 256-
color BMP file that is 96 by 96 pixels in size.
4. Save the file in the C:\Windows\System32 folder
as Oemlogo.bmp.
After you create the files, you can check the results
immediately by pressing [Windows][Break]. This will
quickly bring up the System Properties dialog box.

Courtesy : @internet.info