USB Serial Adaptor Microsoft Community. Hello Bernie,Thank you for posting. Ive researched your issue and found how someone else solved their problem. Ive included the whole article for your convience. Also i would suggest that you uninstall all instances of the device before going further. The step below. Trumptonblog. Please let me know if this helps. Important Note This response contains a reference to a third party World Wide Web site. Dos Serial Port Settings more. Microsoft is providing this information as a convenience to you. Microsoft does not control these sites and. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. There are inherent dangers in the use of any software. Internet, and Microsoft cautions you to make sure that you completely understand the risk before retrieving any software from the Internet. Ive got a couple of USBlt Serial adaptors, neither of which work in Vista. On plugging them in, I went to the hardware manager, and looked at the properties of the unknown device specifically the Hardware. Id this showed up as USBVID0. B PID2. 30. A quick search on the internet shows Prolific as the vendor ID 0. B, and on visiting their website, found out that they do not support Vista, and you need to go to whoever you bought your adaptors from. My adaptors are unbranded ones, so I simply searched for another vendor with an adaptor that is Vista compatible, and uses the Prolific chipset. Pl-2303 Usb To Serial Driver Windows 7' title='Pl-2303 Usb To Serial Driver Windows 7' />I downloaded and installed the Targus PA0. E drivers for Vista, installed them, and then uninstalled this left the driver sys files behind, and I now have two working USBlt Serial adaptors under Vista. Driver Converter Stick Ps2 Bios'>Driver Converter Stick Ps2 Bios. Microsoft Answers Support Engineer Visit our. Microsoft Answers Feedback Forum and let us know what you think. Download the latest version of USB SERIAL CH340 drivers according to your computers operating system. Advanced Inf Installer Message. Pl-2303 Usb To Serial Driver Windows 7' title='Pl-2303 Usb To Serial Driver Windows 7' />USB RS232 Serial Adapter Windows DesktopServer Installation Buy Now Windows 10, 8. Vista 64bit 32bit, Windows XP, Windows 2000, Windows Me, Windows 98.