Psion Teklogix Vehicle-Mount Computer 8590 - Manual (Page 140)

Chapter 8: Internal Devices
Installing Onboard Sound Adaptor Drivers–Windows XP
114 8580/8590 Vehicle-Mount Computer User Manual
1. Open the corresponding folder and run Setup.exe.
2. Tap on Next.
3. In the following window, tap Continue Anyway.
4. Restart your computer.