A4 Tech WOP-49 Driver Download (Official)

A4 Tech Drivers

The WOP-49 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 version of "iWheelWorksA780_2W5K.zip" is rated (1 out of 5 stars) based on 309 downloads and 11 reviews. It is compatible with PCs running Windows Vista and Windows XP, among other operating systems. The total disk space used for this update is 1.3 MB.

11 Ratings

Supported Models


A4Tech PS/2 Port Mouse

A4Tech USB Port Mouse

USB Human Interface Device


A4 Tech

Supported Operating Systems

Windows Vista, Windows 2003 (64 bit), Windows XP, Windows XP (64 bit), Windows 2000, Windows ME, Windows 98

File Name


7.80 (2-Nov-2007)

Additional Notes

Mouse Driver File

Uploaded By

Karthika (DG Staff Member) on 18-Jul-2011

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
iWheelWorksA780_2W5K/Amfilter.sys 8.7 KB 24 Jan 2007
iWheelWorksA780_2W5K/Amfltx64.sys 10.8 KB 24 Jan 2007
iWheelWorksA780_2W5K/Amhooker.dl_ 16.4 KB 10 Feb 2007
iWheelWorksA780_2W5K/Amoucplx.dl_ 168.5 KB 10 Feb 2007
iWheelWorksA780_2W5K/Amoumain.ex_ 95.8 KB 10 Feb 2007
iWheelWorksA780_2W5K/Amoures.dl_ 30.7 KB 10 Feb 2007
iWheelWorksA780_2W5K/Amouse.inf 12.4 KB 16 Jan 2007
iWheelWorksA780_2W5K/Amps2prt.sys 14.3 KB 10 Feb 2007
iWheelWorksA780_2W5K/Amps2x64.sys 21.5 KB 10 Feb 2007
iWheelWorksA780_2W5K/Amsample.dl_ 107.8 KB 10 Feb 2007
iWheelWorksA780_2W5K/Amusbprt.sys 13.8 KB 10 Feb 2007
iWheelWorksA780_2W5K/Amusbx64.sys 16.9 KB 10 Feb 2007
iWheelWorksA780_2W5K/Arfumdev.inf 3.7 KB 17 Jan 2007
iWheelWorksA780_2W5K/Arfumx64.sys 11.8 KB 11 Apr 2006
iWheelWorksA780_2W5K/Arfumx86.sys 10.2 KB 11 Apr 2006
iWheelWorksA780_2W5K/Devinst.ex_ 27.0 KB 23 Jan 2007
iWheelWorksA780_2W5K/Setup.exe 81.9 KB 10 Feb 2007
iWheelWorksA780_2W5K/Setup.ini 120 bytes 12 Feb 2007
iWheelWorksA780_2W5K/Setuphk.dl_ 28.6 KB 22 Jan 2007
iWheelWorksA780_2W5K/Setuplib.dll 262.1 KB 9 Feb 2007
iWheelWorksA780_2W5K/Uninst32.ex_ 33.6 KB 10 Feb 2007
iWheelWorksA780_2W5K/Win9XME/Amouhid.vxd 13.2 KB 11 Feb 2007
iWheelWorksA780_2W5K/Win9XME/Amouse.inf 5.9 KB 16 Jan 2007
iWheelWorksA780_2W5K/Win9XME/Amouse.vxd 18.3 KB 19 Jan 2007
iWheelWorksA780_2W5K/Win9XME/Arfum98.inf 2.0 KB 12 Apr 2006
iWheelWorksA780_2W5K/Win9XME/ArfumME.inf 1.9 KB 12 Apr 2006
iWheelWorksA780_2W5K/Win9XME/Arfumftr.sys 8.1 KB 11 Apr 2006
iWheelWorksA780_2W5K/Win9XME/Mousemsg.vx_ 1.9 KB 29 Mar 2004
iWheelWorksA780_2W5K/X64/Amoucplx.dl_ 196.4 KB 10 Feb 2007
iWheelWorksA780_2W5K/X64/Amresx64.dl_ 48.1 KB 14 Mar 2006
iWheelWorksA780_2W5K/X64/Amsmpx64.dl_ 122.1 KB 10 Feb 2007
iWheelWorksA780_2W5K/X64/Devinst.ex_ 27.9 KB 23 Jan 2007
iWheelWorksA780_2W5K/X64/Dinstx64.ex_ 29.2 KB 21 Jun 2006
iWheelWorksA780_2W5K/X64/Mousecpl.ex_ 26.0 KB 20 Jan 2006
iWheelWorksA780_2W5K/X64/Setuphk.dl_ 27.2 KB 22 Jan 2007
iWheelWorksA780_2W5K/X64/Setuplib.dll 266.2 KB 9 Feb 2007
iWheelWorksA780_2W5K/X64/Setupx64.exe 79.4 KB 10 Feb 2007
iWheelWorksA780_2W5K/X64/Uninst64.ex_ 49.9 KB 10 Feb 2007

How to Update WOP-49 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the WOP-49 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 WOP-49 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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