Now I use the win7 64bit home system,and I had qx3,where can I find the driver?or may I use the driver for windows xp to use?

Sorry, the QX3 does not work on 64-bit systems. The drivers are not compatible. There are instructions available for using the QX3 with Windows 98, Me, XP and 32-bit versions of Vista, Windows 7 and even Windows 8.

Here are the instruction for installing the QX3 (or QX3+) Microscope with Windows 8 and Windows 8.1. You must be using a 32-BIT VERSION of Windows 8 or 8.1.
Note: The QX3 is not compatible with 64-bit versions of XP, Vista, Windows 7 or 8.

Note, DO NOT use the software from the CD that came with the microscope.
DO NOT plug in the QX3 microscope until Step 4.

Step 1. Download and run the QX3plus.exe program from:
http://tinyurl.com/QX3-Win8-1
After the program installs, uncheck "I would like to view the README file." Click "Finish".

Step 2. Download and run the qcodinstl.exe program from:
http://tinyurl.com/QX3-Win8-1
If asked about NTVDM, click "Install this feature" then click "Close"

Step 3. Download IntelQX3driverXP.zip and save (do not open) the file from:
http://tinyurl.com/QX3-Win8-1

Step 4. Now, plug in the microscope. The driver should load silently.
If the "Found New Hardware" wizard appears and you get a message saying that the driver installation was not successful. Click the Close box. You need to install the driver manually by following these steps:
a. Right-click START - Select "Device Manager"
b. Right-click on the Intel QX3 Icon and select "Update Driver Software", select "Browse my computer for driver software"
e. Browse to the Download folder with the extracted QX3 drivers from Step 3. above. The driver software should install successfully.

IMPORTANT: Before you run the QX3Plus program for the first time, right click the "Intel Play QX3 Microscope" icon on the desktop, click "Properties", click the "Compatibility" tab, check the box next to "Run this program in compatibility mode for:", then choose "Windows 98 / Windows ME" in the drop-down box. You should also check "Run as Administrator" if your account is a "Standard user". Click "Apply" then "Ok".
Step 5. Finally, double-click the "Intel Play QX3 Microscope" icon on the desktop and the program should run.
If you get a message that the microscope is not plugged in, quit and restart the program.
If the program hangs or crashes, reboot the computer, then restart the program.
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Comments and suggestions to mmehall [at] yahoo.com

Here are the instruction for installing the Intel QX3 (or Digital Blue QX3+) Microscope with Windows 7 or Windows 8.1. You must be using a 32-BIT VERSION of Windows 7 or 8.1.
Note: The QX3 is not compatible with 64-bit versions of XP, Vista, Windows 7 or 8.

Note, DO NOT use the software from the CD that came with the microscope.
DO NOT plug in the QX3 microscope until Step 4.

Step 1. Download and run the QX3plus.exe program from:
http://tinyurl.com/QX3-Win8-1
After the program installs, uncheck "I would like to view the README file." Click "Finish".

Step 2. Download and run the qcodinstl.exe program from:
http://tinyurl.com/QX3-Win8-1
If asked about NTVDM, click "Install this feature" then click "Close"

Step 3. Download IntelQX3driverXP.zip and save (do not open) the file from:
http://tinyurl.com/QX3-Win8-1

Step 4. Now, plug in the microscope. The driver should load silently.
If the "Found New Hardware" wizard appears and you get a message saying that the driver installation was not successful. Click the Close box. You need to install the driver manually by following these steps:
a. Right-click START - Select "Device Manager"
b. Right-click on the Intel QX3 Icon and select "Update Driver Software", select "Browse my computer for driver software"
e. Browse to the Download folder with the extracted QX3 drivers from Step 3. above. The driver software should install successfully.

IMPORTANT: Before you run the QX3Plus program for the first time, right click the "Intel Play QX3 Microscope" icon on the desktop, click "Properties", click the "Compatibility" tab, check the box next to "Run this program in compatibility mode for:", then choose "Windows 98 / Windows ME" in the drop-down box. You should also check "Run as Administrator" if your account is a "Standard user". Click "Apply" then "Ok".
Step 5. Finally, double-click the "Intel Play QX3 Microscope" icon on the desktop and the program should run.
If you get a message that the microscope is not plugged in, quit and restart the program.
If the program hangs or crashes, reboot the computer, then restart the program.
------------
Comments and suggestions to mmehall [at] yahoo.com

The QX3 works fine with Windows XP. Just download the latest software from Intel:
http://tinyurl.com/qx3plus

-Mark

Sure, they can be downloaded easily by using this software: Driver Update Software for XP Vista 7 8. Wish you best of luck. Cheers

Hi
I looked up for the drivers for your Intel Play QX3 Microscope on Intel's website.You can check this link
For the time being the driver has not been released for this device.Last driver update was on 8/28/2006 which was before the launch of windows 7.We need to wait for the compatible drivers or use this device on windows XP platform
Thank you

The Intel QX3 is not compatible with 64 bit operating systems. It will not work. Sorry.

You can either reinstall Windows 7 as a 32-bit version or purchase a QX5 model which is compatible with Windows 7 64-bit.

-Mark

Sorry, Intel stopped making these years ago. They DID post updated drivers, but long before Vista arrived. Go to the Intel web site, your only other hope is to find a blog of Intel QX3 users, maybe some gearhead updated the driver pro bono.

I have used the QX3 microscope without issue on a windows xp machine

here is a link with more info

http://www.intel.com/support/intelplay/qx3/sb/CS-016015.htm

You should be looking for a windows 3.1 emulator, to run 3.1 inside XP, and not for a driver. It's highly unlikely you'll find a driver unless you have a programmer custom make one for you.