Standard .inf File for Driver

I've the following problem:My Philips Audio Set worked fine with XP, but not with Vista. There is no real driver for vista for this device.I've managed to use the .inf file of the XP-Driver to use the device. But every time, when I reconnect the device, I've to reinstall the driver by the following steps:1. open the Device Manager2. Select "Philips Composite USB-HIFI Device" and select "Update driver"3. Click on: "Search on the PC for a driver"4. Click on: "Select from a List of Device-Drivers on the PC"In this List are two entries:-USB Composite Device-Philips Composite USB-HIFI Device5. From the List I select the entry: Philips Composite USB-HIFI DeviceAfter these steps, the device works fine.But after the next reboot or reconnect I've to redo the whole steps.I thi ...