1. Open the "Control Panel" on your computer.
2. Double-click on the "Regional and Language Options" icon.
3. Click on the "Languages" tab and then click on the "Details" button.
4. In the "Text Services and Input Languages" dialog box, click on the "Add" button.
5. In the "Add Input Language" dialog box, select the "Urdu" language from the list and then click on the "OK" button.
6. In the "Text Services and Input Languages" dialog box, select the "Urdu Phonetic" input method from the list and then click on the "Set as default" button.
7. Click on the "OK" button to close the "Text Services and Input Languages" dialog box.
8. Click on the "OK" button to close the "Regional and Language Options" dialog box.
9. Open the Inpage software and start typing in Urdu. You should now be able to type half Urdu letters.
Note: If you are using a different version of Windows, the steps may be slightly different.