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You can follow the link to run the Windows 7 Upgrade Advisor that will list programs that it determines aren't compatible.
The scanner Canon CanoScan 4200F scanner seems to be compatible with both 32-bit and 64-bit versions of Windows 7.
The Multitech MT5634ZPX-PCI-U V.34 (Super G3) analog modem and Twain doesn’t seem to be listed in the compatibility center.
However if any of the applications has compatibility issues, I would recommend you to try running the incompatible programs in Compatibility mode first.
Windows 7 has inbuilt tool which will help resolve most of the compatibility issues.
You can access the Program Compatibility troubleshooter by following these steps,
1) 1) Click Start.
2) 2)In the Start search box, type troubleshooting.
3) 3)Select Troubleshooting under Control panel.
4) 4)Under Programs, click Run programs made for previous versions of Windows.
Access the link below to check for the compatibility of your products with Windows 7.
Hope this information is helpful
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