A4 Tech USB PC Camera Driver Download

A4 Tech Drivers

The USB PC is a camera manufactured by A4 Tech. Updated drivers can improve image quality and fix problems such as disabled settings in Device Manager, drop outs and glitches during Zoom and other performance issues. This driver - "A4tech.zip" - has been downloaded 2,993 times and is rated 5 out of 5 stars based on 19 reviews. Our users report success installing this driver update on PCs running Windows 7 and Windows XP. The total disk space used for this update is 2.0 MB.

19 Ratings (see all reviews)

Supported Models

like a microfone

A4 Tech USB PC Camera


A4 Tech

Supported Operating Systems

Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98

File Name


4.3.0916.02 (2004-09-16) via .inf

Additional Notes

A4Tech webcam driver.

Uploaded By

Alcantara, Chris (DG Member) on 26-Apr-2006

Most Helpful Reviews

7 of 8 people found the following review helpful:
Tested on Windows XP
30 Jan 2007

Installation: 5 out of 5
Stability: 4 out of 5
Compatibility: 4 out of 5
"thanks for the driver it is very usefull to me"
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See all A4 Tech USB PC Camera ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
Driver/Config.set 62.3 KB 2 Nov 2004
Driver/Setup.exe 1.9 MB 5 Nov 2004
Driver/StillCap.exe 53.2 KB 22 Aug 2002
Driver/VM31bPrp.Ax 233.5 KB 31 Aug 2004
Driver/VM31bSTI.dll 61.4 KB 15 May 2003
Driver/VM31bTWN.DS 77.8 KB 3 Apr 2003
Driver/VM31bTXP.DS 86.0 KB 9 Apr 2003
Driver/VMCap.exe 147.5 KB 22 Aug 2002
Driver/VM_STI.EXE 49.2 KB 24 Feb 2004
Driver/amcap.exe 49.2 KB 16 Oct 2002
Driver/usbVM31b.sys 91.3 KB 17 Aug 2004
Driver/usbvm31b.inf 8.8 KB 5 Nov 2004

How to Update A4 Tech USB PC Camera Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the A4 Tech USB PC Camera driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter A4 Tech USB PC Camera into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the A4 Tech Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the A4 Tech website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

This website is not affiliated with A4 Tech. All company names/logos are properties of their owners.
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