Version 32.00 refers to a specific driver package released by Prolific Technology Inc. for their PL-2303 USB-to-Serial bridge controllers. This version number is significant because it marks a turning point in Prolific’s driver policy.
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The Prolific USB-to-Serial Comm Port driver version 3.2.0.0 is an older driver, originally dated July 31, 2007, which is frequently used as a workaround to fix compatibility issues with certain USB-to-serial chips (often clones or discontinued models) that no longer work with newer drivers on modern operating systems like Windows 10 or 11. Why This Version is Popular
Users often seek this specific version because newer "official" drivers may trigger a "Code 10" error or display a "Phased Out" message if they detect non-original or older Prolific PL-2303 chips. Downgrading to version 3.2.0.0 often restores functionality for these devices. Where to Download
Since this is an older version, it is typically found on enthusiast sites or manufacturer support pages rather than the main Prolific corporate site:
Enthusiast Sites: Sites like Miklor and VE7ED provide direct links to version 3.2.0.0 for radio programming and other legacy uses.
Manufacturer Support: Legacy support for specific hardware brands, such as Dell, may offer specialized installers, though they often host newer versions like 5.1.x or 5.2.x.
Official Prolific Site: You can access their current driver downloads at Prolific USA or via their Customer Login (using GUEST for both username and password) to see if they still offer legacy versions.
Prolific USB to Serial Controller Driver | Driver Details | Dell US
Importance * File Format: Update Package for MS Windows 64-Bit. * File Name: Prolific-USB-to-Serial-Controller-Driver_CGX22_WIN64_ Cables & Drivers - Prolific & FTDI - Miklor
How to Download and Install Prolific USB-to-Serial Driver Version 3.2.0.0
The Prolific USB-to-Serial Comm Port Version 3.2.0.0 is widely regarded by technicians and radio hobbyists as the "magic" driver for resolving connectivity issues with PL2303-based adapters. While newer drivers often fail or trigger "Code 10" errors on modern operating systems like Windows 10 and 11, version 3.2.0.0 (dated July 31, 2007) remains the most stable legacy solution. Why Version 3.2.0.0 is Essential in 2021 and Beyond prolific usb to serial comm port version 32 00 download 2021
Most "Code 10" or "Device cannot start" errors occur because modern Windows updates automatically install the latest Prolific drivers. These newer versions are often incompatible with older or "clone" PL2303 chips. Reverting or "backdating" to v3.2.0.0 is the industry-standard fix for: Yellow Warning Triangles in Device Manager. "Phased Out" messages from the manufacturer.
Programming Cable Issues for ham radios and other serial equipment. Step-by-Step: Downloading and Installing Version 3.2.0.0
To successfully bypass Windows' tendency to update your driver automatically, follow these manual installation steps. 1. Download the Driver Package
Reliable legacy versions can be found through archived hardware support sites like Miklor or VE7ED. Ensure you download the version specifically labeled 3.2.0.0. 2. Prepare Your System
Unplug the USB Cable: Remove the adapter from your PC before starting the installation.
Create a Work Folder: Save your download into a dedicated folder (e.g., C:\PL2303_Fix) for easy access. 3. Run the Installer Double-click the .exe or run the setup from the .zip file.
Follow the prompts in the InstallShield Wizard and click Finish when done. 4. Manually Select the Driver in Device Manager
Even after running the installer, Windows may still try to use a newer version. You must force it to use v3.2.0.0: Plug in your USB-to-Serial adapter. Open Device Manager (Right-click Start > Device Manager).
Expand Ports (COM & LPT) and right-click Prolific USB-to-Serial Comm Port. Select Update driver > Browse my computer for drivers.
Choose Let me pick from a list of available drivers on my computer.
Select the entry that specifically says Version: 3.2.0.0 [7/31/2007] and click Next. Troubleshooting Common Issues Cables & Drivers - Prolific & FTDI - Miklor Version 32
How to Fix the "Code 10" Error: Prolific USB-to-Serial Driver v3.2.0.0
If you’ve ever plugged in a USB-to-Serial adapter only to be met with a yellow warning triangle and the dreaded "This device cannot start (Code 10)" "Phased out"
message, you aren’t alone. This often happens because modern Windows updates automatically install newer drivers that are incompatible with older or "non-genuine" Prolific PL2303 chips. The community-accepted fix is to "backdate" your driver to version 3.2.0.0
, a stable release that typically bypasses these compatibility blocks. Why Version 3.2.0.0?
Newer Prolific drivers (v3.8 and above) are designed to disable older hardware versions or chips that Windows deems "unsupported". Version 3.2.0.0 is widely recognized by enthusiasts—especially in the radio programming community—as the last "universal" version that works reliably on Windows 10 and 11 for older hardware. Step-by-Step Installation Guide To get your COM port working again, follow these steps: Download the Driver : Locate the Prolific 3.2.0.0
installer. Many users find it on community support sites like Run the Installer : Double-click the downloaded
file and follow the prompts. Note that this might not immediately fix the issue if a newer driver is already active. Manual Rollback in Device Manager Device Manager (Right-click Start > Device Manager). Ports (COM & LPT) and right-click your "Prolific USB-to-Serial Comm Port". Update driver Browse my computer for drivers Let me pick from a list of available drivers on my computer Choose the version that specifically says and click Next. Verify the Fix
: The yellow triangle should disappear. You can confirm the version by double-clicking the device in Device Manager and checking the Pro-Tip: Stop Automatic Updates
Windows may try to "helpfully" update this driver back to a newer, broken version later. If the error returns, you can use the "Roll Back Driver" button in the device properties or disable automatic driver updates for that specific hardware.
Are you still seeing a Code 10 error after rolling back, or is your COM port number not showing up at all? AI responses may include mistakes. Learn more
Prolific USB to Serial Controller Driver | Driver Details | Dell US Install:
Guide to Prolific USB-to-Serial Driver Version 3.2.0.0 Prolific USB-to-Serial Comm Port driver version 3.2.0.0
is a legacy driver often required for older PL2303 chipsets (like the PL2303HXA) that are no longer supported by newer Windows 10 and 11 official drivers. Using this specific version is a common fix for the "Code 10" error, where newer drivers intentionally disable counterfeit or phased-out chips. Why You Need Version 3.2.0.0
Newer Prolific drivers (v3.8 and above) include security checks that cause older or "phased-out" chips to stop working, often displaying a yellow exclamation mark in the Device Manager. Version 3.2.0.0 is the most stable "backdated" driver that maintains compatibility with these older devices on modern operating systems. How to Download and Install
While Prolific's official website now hosts much newer versions (like v4.0.8), version 3.2.0.0 can still be found through specialized hardware and radio community sites. Microsoft Community Hub
: Locate the version 3.2.0.0 installer (often found on sites like RadioScanner Disconnect
: Unplug your USB-to-Serial adapter before starting the installation. Run Installer : Execute the 3.2.0.0 or unzip the manual files to a dedicated folder. Connect Device
: Plug the adapter back in. If Windows automatically updates it to a newer version, you must manually roll it back. Manually Rolling Back in Device Manager
If your device still shows an error after installation, follow these steps to force the 3.2.0.0 version: Device Manager and find the Prolific entry under Ports (COM & LPT) Right-click and select Update driver Browse my computer for drivers Let me pick from a list of available drivers on my computer Choose the version labeled (dated around 2007-2008) and click Next. Driver Specifications (Legacy vs. 2021+) Legacy Version 3.2.0.0 Recent 2021+ Versions (v3.8+) Primary Use Fixing "Code 10" on older/cloned chips Support for PL2303G (GC, GB, GS) chips Windows Support Vista, 7, 8, 10, 11 (Manual) Official Windows 10 & 11 support Release Era Circa 2007-2008 Released throughout 2021-2022
For official, modern hardware, you can download the latest drivers (v4.0+) directly from the Prolific Support Website using the guest credentials for both username and password. Microsoft Community Hub you're seeing in the Device Manager? Prolific USB-to-Serial Comm Port (COM8) Driver for Zepto
| Error | Solution |
|-------|----------|
| Code 10 (Device cannot start) | You have a counterfeit chip, or Windows forced a newer driver. Reinstall with driver signature enforcement disabled (hold Shift while clicking Restart → Troubleshoot → Startup Settings → Disable driver signature enforcement). |
| Code 31 (Driver is not installed properly) | Run the installer in Windows 7 compatibility mode (right-click → Properties → Compatibility → Windows 7). |
| COM port number too high (>16) | Open Device Manager → Ports → Advanced → Change COM port number to COM3 or COM4. |
| Driver disappears after reboot | Disable Windows Update driver search via Group Policy: gpedit.msc → Computer Config → Admin Templates → System → Device Installation → Specify driver source. |