Before installing the UPDD (Universal Pointer Device Driver), existing drivers for the touch screen which you wish to install must first be uninstalled. Then, run the setup and select the touch screen you wish to install. With serial touch screens, the correct COM port must be selected. This is usually COM4 for roda Tablet PCs and COM1 for roda Notebooks. (Afterwards, additional touchscreens can be added or existing ones removed and modified.)
After successful installation, the UPDD icon appears in the SysTray's context menu with which, among other things, the touch screen can be calibrated.