A4 Tech A4Tech PS/2 Port Mouse Driver Download

A4 Tech Drivers

The A4Tech PS/2 Port Mouse is a type of mouse manufactured by A4 Tech. Updating this driver fixes tracking problems, intermittent or no connectivity and can unlock some advanced features of your type of mouse. This update - "3_button_trackball_mouse_driver.zip" - has an average rating of 5 out of 5 stars based on 8 reviews, and has been downloaded 265 times. It has been installed successfully by our users on PCs running Windows XP. The total disk space used for this update is 638.5 KB.

8 Ratings (see all reviews)

Supported Models


A4Tech PS/2 Port Mouse

A4Tech Serial Port Mouse

A4Tech USB Port Mouse

A4tech Serial Port Wheel Mouse

USB Human Interface Device


A4 Tech

Supported Operating Systems

Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95

File Name


A4 Tech (2000-10-01) via .inf
5.12.3022.0 (2004-08-25) via .inf

Additional Notes

For the WWT-13, but seems to work well with Radio Shack 3 button trackball mouse. So it should work for most of them.

Uploaded By

SurleyBlaine (DG Member) on 23-Nov-2004

Ratings & Reviews

See all A4 Tech A4Tech PS/2 Port Mouse ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
setup.ini 264 bytes 3 Feb 2004
Amuninst.ex_ 55.2 KB 25 Aug 2004
Amusbdev.inf 2.9 KB 25 Aug 2004
Amudev98.inf 2.0 KB 25 Aug 2004
Amps2prt.sys 10.0 KB 25 Aug 2004
Amsample.dl_ 108.9 KB 25 Aug 2004
Amouse.inf 10.4 KB 25 Aug 2004
Amoucplx.dl_ 172.4 KB 25 Aug 2004
Setup.exe 319.5 KB 25 Aug 2004
Arfumftr.sys 7.4 KB 25 Aug 2004
Amoumain.ex_ 67.7 KB 25 Aug 2004
Amouse.vxd 16.7 KB 25 Aug 2004
Amusbprt.sys 10.2 KB 25 Aug 2004
Amoures.dl_ 30.7 KB 25 Aug 2004
Amouhid.vxd 12.2 KB 25 Aug 2004
Amfilter.sys 5.1 KB 25 Aug 2004
Amserprt.sys 20.1 KB 25 Aug 2004
WinNT40/Setuphk.dll 28.7 KB 8 Apr 2004
WinNT40/Amouse.inf 4.8 KB 2 Apr 2001
WinNT40/Ai8042pt.sy_ 28.6 KB 23 Apr 2004
WinNT40/Va4tech.sy_ 1.9 KB 29 Mar 2004
WinNT40/Amserial.sy_ 14.4 KB 31 Mar 2004
Amhooker.dl_ 16.4 KB 25 Aug 2004

How to Update A4Tech PS/2 Port Mouse Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the A4Tech PS/2 Port Mouse 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 A4Tech PS/2 Port Mouse 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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