if you want to add your name to the right bottom corner of your computer window where time is shown you have to follow below steps:
1. Go to:
Start.>
Control Panel.>
Regional and Language Options.
2. Click the Customize button.
3. Select Time tag.
4. Highlight AM and type any text or your name you want to display .
5. Repeat step with PM.
6. click apply and than ok.......
Enjoy the trick.