I am trying to install a Prolific PL2303 USB-to-Serial port 1ft. Adapter cable. This particular one made by Sabrent. It seems that lots of people don't have any issues, and they have XP, Vista, and Win7 drivers available for it. I downloaded the latest Vista driver installer from the Prolific website (, 12/2/2009). The driver says it installed. I then do a reboot.

NEW Windows 7 and Vista 64-Bit Prolific USB to Serial Adapter Drivers PL-2303. PL-2303 USB Serial Adapter Drivers prolific serial adapter driver prolific pl 2303 usb. USB to Serial drivers. Serial ports, a.k.a. Installing the PL-2303 USB-to-Serial driver under Windows 7; Updated 2011-06-01. Apr 26, 2017 I got my end of life PL-2303 HXA USB serial converter to work on Windows8 64bit by doing the following. Visit the prolific site and get the following driver.

After system is up, I plugged in the cable. Windows detects I inserted the USB and displays the searching for drivers dialog. Odd I thought. Fluid Flow And Heat Transfer In Wellbores Pdf. I click to watch the status and it ends with the message: 'Prolific USB to serial comm port (COM4) - Failed' In device manager it shows a question mark next to it. If it's a Vista driver, why would it fail?

What can I do to get this to install? I also have another Vista machine that I tried it on, just to see if it was that machine or what. It failed too!? Thanks for the quick reply. I wasn't installing as the 'Run As Admin' link at first, even though my account has Admin rights. But yes, then I started doing that, no change.

However, I'm happy to say I found the problem! After posting this, I did a search in these forums and came across ONE other post that had lots of feedback.someone in that one posted a link to drivers which I had not tried. The thread is here:. The Vista drivers from cooldrives () did the trick! I have no idea of the lineage of this driver package but they worked. And they worked when the ones on the included CD did not; when the ones from the Sabrent website did not, and when the ones from the Prolific website did not.