PL2303 Windows Driver User Manual v1.8.0 

PL2303 Windows Driver User Manual v1.8.0 
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
PL2303 USB-to-Serial Bridge Chip Family
Windows Driver Installer User Manual
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WHQL Driver Version Information
 Driver Installer & Build date: 1.8.0 (2013-2-26)


Windows 2000 / Windows XP (32 & 64-bit) WHQL Driver: v2.1.44.226 (2/5/2013)


GUID: ECC3713C-08A4-40E3-95F1-7D0704F1CE5E
Compatible with Server 2003 (32 & 64-bit)
Windows Vista / Windows 7 / Windows 8 (32 & 64-bit) WHQL Driver: v3.4.48.272 (2/5/2013)

Compatible with Server 2008, Server 2008R2, Server 2012 (32 & 64-bit)

Drivers can also automatically install via Windows Update (need Internet connection)
System Requirements


PC with USB 1.1/2.0/3.0 Host Controller (USB Port) and following Windows OS Family:

Windows 2000 SP4

Windows XP SP2 or SP3 (32 & 64 bit)

Windows Server 2003 (32 & 64 bit)

Windows Vista (32 & 64 bit)

Windows 7 (32 & 64 bit)

Windows Server 2008 / 2008 R2 (32 & 64 bit)

Windows 8 (32 & 64 bit)

Windows Server 2012 (32 & 64 bit)
USB Device with below PL-2303 chip versions and their supported OS Family:
Windows 2000 / XP
Vista / Windows 7
Windows 8
(32 & 64 bit)
(32 & 64 bit)
(32 & 64 bit)
PL-2303H
Yes
Yes
Not Supported*
PL-2303HX (Rev A) or HXA
Yes
Yes
Not Supported*
PL-2303X or XA
Yes
Yes
Not Supported*
PL-2303HX (Rev D) or HXD
Yes
Yes
Yes
PL2303TA
Yes
Yes
Yes
PL2303TB
Yes
Yes
Yes
PL2303EA
Yes
Yes
Yes
PL2303RA
Yes
Yes
Yes
PL2303SA
Yes
Yes
Yes
Chip Version
* - PL2303H, PL-2303HX (Rev A), and PL-2303X are EOL and discontinued chips and Prolific will not
provide Windows 8 driver support. New driver versions will show yellow mark (Error Code 10) in Device
Manager for these EOL chip versions under Windows 8. Prolific recommends using PL2303HXD chip.
Prolific Technology Inc.
- 1 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
Counterfeit Warning!!!
Please be warned that counterfeit/fake PL-2303HX Rev A (or PL-2303HXA) USB-to-Serial Controller
ICs using Prolific's trademark logo, brandname, and drivers, are being sold in the China market.
Counterfeit IC products show exactly the same outside chip markings but generally are of poor quality
and causes Windows driver compatibility issues (Yellow Mark Error Code 10 in Device Manager under
WinXP, Vista, and 7). This warning is issued to all customers and consumers to avoid confusion and
false purchase. Please purchase only from stores or vendors providing technical and RMA support.
Windows 7 Driver Installation
This section will guide you on how to install the PL-2303 Windows Driver. You can download the latest
Driver Installer program from Prolific Support website:
http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41
Note: Please take notice of the installation order. First, run the Driver Installer Program before
plugging in the USB to Serial adapter. If you already plug the device during the driver installation, you
need to re-plug the device for Windows to enumerate the device and load the drivers installed. If your
device is embedded to the system, you might need to restart the system (or click rescan hardware
changes in Device Manager) to reload and install the driver.
The following steps will show how to install the device under Windows 7 (64-bit) OS as this is the most
inquired driver installation support received by Prolific. The procedures are the same and straightforward for all other supported Windows operating system versions.
Prolific Technology Inc.
- 2 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
1.
Power on your computer and boot to Windows. Run or double-click the PL-2303 Windows Driver
Installer program.
2.
The InstallShield Wizard will be displayed to inform you that the PL-2303 USB-to-Serial driver
will be installed on your computer. Click Next to continue.
Prolific Technology Inc.
- 3 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
3.
The PL-2303 Driver Installer program will then start to install the drivers needed.
4.
Click the Finish button to close the InstallShield program. If you have plugged the cable into the
PC while running the setup installation, please unplug and replug the cable for the system to
detect the device.
Prolific Technology Inc.
- 4 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
5.
Plug in the USB to Serial adapter to the PC USB port. Windows should detect the driver as
Prolific USB-to-Serial Comm Port. Go to Device Manager and check for the “Prolific
USB-to-Serial Comm Port” device and the COM port number assigned by Windows.
6.
You can also check the driver version by right-clicking on the “Prolific USB-to-Serial Comm Port”
device and select Properties and Driver tab.
Prolific Technology Inc.
- 5 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
Warning!!!
If you are encountering yellow mark (Error Code 10) for device in Device Manager under Windows XP,
Vista, or Windows 7, you need to contact the cable vendor or manufacturer for possible counterfeit
chip. Prolific does not manufacture or sell any end-user market products and will not provide or be
responsible for direct support to end-users.
Prolific Technology Inc.
- 6 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
Windows Driver Installation (via Windows Update)
This section will guide you on how to install the PL-2303 Windows Driver via Windows Update. You
will need an Internet connection to be able to automatically download and install the drivers via
Windows Update (for Windows Vista, 7, and 8 only).
1.
Check if your Internet connection is OK. Plug in PL-2303 USB to Serial cable.
2.
Windows will automatically check Windows Update if driver is available and will download and
install the driver instantly.
Prolific Technology Inc.
- 7 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
3.
Windows will then prompt you that Prolific USB-to-Serial Comm Port (COMx) is installed and
ready to use.
Prolific Technology Inc.
- 8 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
4.
You can also right-click on the USB-Serial Controller device and click Update Driver.
Prolific Technology Inc.
- 9 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
Prolific Technology Inc.
- 10 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
Windows 8 Supported Chip Versions
This section will guide you on what PL-2303 chip versions are supported by Prolific in Windows 8:
Chip Version
Chip Availability
Windows 8 (32 & 64 bit)
PL-2303H
Discontinued (EOL)
No New Driver Support*
PL-2303HX (Rev A) or HXA
Discontinued (EOL)
No New Driver Support*
PL-2303X or XA
Discontinued (EOL)
No New Driver Support*
PL-2303HX (Rev D) or HXD
Available
Yes
PL2303TA
Available
Yes
PL2303TB
Available
Yes
PL2303EA
Available
Yes
PL2303RA
Available
Yes
PL2303SA
Available
Yes
* - New Driver does not support PL-2303H, PL2303HX (Rev A), and PL2303X in Windows 8. It will show a yellow
mark (Error Code 10) in Device Manager similar to what counterfeit chips would show.
Check Chip Version Tool
Prolific provides a tool program together with the driver to check the chip version of your device for
Windows8-ready driver support.
http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41
NOTE:
This tool will not work in Windows 8 if the PL-2303 device shows a yellow mark in Device Manager.
You need to use Windows 7 or XP to run the tool program for discontinued chip versions.
Prolific Technology Inc.
- 11 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
Windows 8 Driver Installation
This section will guide you how to install the PL-2303 device in Windows 8 Operating System. You
can download the latest Driver Installer program from Prolific Support website:
http://www.prolific.com.tw/eng/downloads.asp?ID=31
1.
Power on your computer and boot to Windows 8. Run or double-click the PL-2303 Windows
Driver Installer v1.8.0 program.
2.
The InstallShield Wizard will be displayed to inform you that the PL-2303 USB-to-Serial driver
will be installed on your computer. Click Next to continue.
Prolific Technology Inc.
- 12 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
3.
The PL-2303 Driver Installer program will then start to install the drivers needed. Click the Finish
button to close the InstallShield program.
4.
Plug in the USB to Serial adapter to the PC USB port. Windows should detect the driver as
“Prolific USB-to-Serial Comm Port”. Go to Device Manager and check for the device and the
COM port number assigned by Windows. You can also check the driver version by right-clicking
on the “Prolific USB-to-Serial Comm Port” device and select Properties and Driver tab.
Prolific Technology Inc.
- 13 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
5.
The COM Port number for the PL-2303 is assigned by the Windows Operating System. If you
encounter a device that shows a yellow mark (Error Code 10), you need to check if that device is
using an old version Prolific chip (PL-2303HXA or PL-2303XA) or a counterfeit chip. As
mentioned in the previous sections, Prolific does not support old version chips in Windows 8.
Prolific Technology Inc.
- 14 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
Windows 8 Driver Installation (via Windows Update)
This section will guide you on how to install the PL-2303 Windows Driver via Windows Update. You
will need an Internet connection to be able to automatically download and install the drivers via
Windows Update.
1.
Check if your Internet connection is OK. Plug in PL-2303 USB to Serial cable.
2.
Windows will automatically check Windows Update if driver is available and will download and
install the driver instantly.
Prolific Technology Inc.
- 15 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
3.
Windows will then prompt you that Prolific USB-to-Serial Comm Port (COMx) is installed and
ready to use.
Prolific Technology Inc.
- 16 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
4.
You can also right-click on the USB-Serial Controller device and click Update Driver.
Prolific Technology Inc.
- 17 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
Prolific Technology Inc.
- 18 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
Uninstalling the PL-2303 Driver
To uninstall the PL-2303 driver, follow the below steps:
1.
Click Start – Control Panel – Programs – Programs and Features - Uninstall a Program. Look for
the “PL-2303 USB-to-Serial” program and click the Uninstall (Remove) button.
2.
InstallShield Wizard will then start the maintenance program and will prompt you to choose if you
want to modify, repair, or remove the driver. Click the Remove button and click Next to begin the
driver uninstall.
Prolific Technology Inc.
- 19 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
PL2303 Windows Driver User’s Manual
For Driver Installer v1.8.0 Release
For Microsoft Windows Operating Systems
3.
The InstallShield Wizard will prompt you to confirm to uninstall. Click Yes to continue.
4.
Wait for the InstallShield Wizard to complete the uninstall process. When complete, click Finish
to end the program. Wait for some few seconds until the “PL-2303 USB-to-Serial” program is
removed from the Control Panel Uninstall (Add or Remove Programs) program list.
Prolific Technology Inc.
- 20 of 20 -
February 26, 2013
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages. No part of this document may be
reproduced or transmitted in any form by any means without the express written permission of the manufacturer.
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