I have a WIN TV on Windows XP SP".
The problem is with the drivers. You not only need the ones on the disk but also those incorporated in Windows.
Go to Control Panel: System: Device Manager: Sound, Video and Game Controllers:
If one or more shows as not working, click on it and follow instructions to install. It should be on your disk
Hauppauge WINTV 878/9 WDM Aux Driver
Hauppauge WINTV 878/9 WDM Video Driver.