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I have a mouse that I absolutely love (been using them for years), A4Tech WOP-35. It has dual scrollers and 5 buttons, 3 of the buttons are programmable. I use them at work and at home.

At work I am using Windows 7 Enterprise (32 bit), at home I am using Windows 7 Professional (64 bit).

The drivers installed easily on my machine at work. Unfortunately, they will not install on my computer at home. When I double click on the Setup.exe, it asks me if I want to install it, and of course I click on "Yes", but nothing happens. When I say nothing happens, I mean nothing happens; it appears that it doesn't even try to install. The same thing happens when I right click on the setup.exe and select run as administrator.

How can I get around this? I am guessing it is because I am running the 64 bit version of Windows.

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Try this driver, use the x64 for – Moab Mar 3 '11 at 18:10
That mouse seems to have a very interesting design. Could you share a screenshot of it? – Randolf Richardson Mar 3 '11 at 18:34
*** UPDATE *** I found a picture of it here: – Randolf Richardson Mar 3 '11 at 18:44
I won't put this link as an answer because it may not work, but someone has found that the Smart X7 mouse drive works well for the WOP-49Z so it may work for your WOP-35? – Big Chris Dec 17 '15 at 9:30

You're right, it's because of your 64-bit Windows. :) Hardware drivers are one of those things that the 64-bit vs. 32-bit addressing makes the difference, so you need 64-bit drivers.

Upon looking up your mouse, I see that A4Tech doesn't offer a driver for anything newer than Vista 32-bit. But the Windows driver package they offer DOES contain Windows 2003 64-bit and XP 64-bit drivers, so MAYBE one of those will work.

Perhaps contact A4Tech for some guidance?

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That was the driver I downloaded, but it doesnt want to install at all. – Soren Mar 4 '11 at 4:30
@Soren - That's what I figured. You're probably at the mercy of A4Tech to create an updated driver to get full functionality in newer or unsupported operating systems. – Ƭᴇcʜιᴇ007 Mar 4 '11 at 4:37

I too looked for the Windows 7 driver for other mice:

  • Install and go to Control Panel » Mouse
  • Choose Mouse and change the driver.

This mouse hadn't the second wheel but works in Windows 7.

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I don't believe one can use a 32-bit driver on 64-bit Windows 7, except maybe in XP Mode (which is just a 32-bit virtual machine).

You can try to set the Compatibility of setup.exe to an older version of Windows and try to install, but I am afraid that this will not change much.

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If you can't acquire a 64-bit driver for Windows 7, you could try the freeware X-Mouse Button Control. It will let you program the functions of the various buttons. I'm not sure how it will handle the dual scroll wheels though.

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The program works good. I still dont have horizontal scrolling (no setting for the second scroller wheel), but at least I can program the buttons for what I want. – Soren Mar 4 '11 at 4:31

Download driver "" (yeah, it is "AK-6" not "A4Tech WOP-35" but...)

Unzip. Open "/Vista X64 driver/Setup.ini" change to this and save:



Then install via "Setup.exe". (not my clue but it works for me)

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