The Visioneer Support web page lists OS compatibility for the 7600. Go to: http://www.visioneer.com/support/flatbed/7600osinfo.asp
In short:
The Visioneer 7600 USB scanner is not supported on Windows XP, although it may function properly on most systems. If you choose to install the software on Windows XP, it is recommended that you create a system checkpoint by using the Windows XP System Restore feature. During installation Microsoft displays a warning dialog because the driver you are installing has not been submitted to Microsoft for testing. Click the Continue button to complete the installation. If you experience any problems with your scanner or operating system, remove the software and restore to the point created before you installed the driver.
The 7600 is supported by Windows 2000, NT, 98 & Millenium. Note, the 7600 scanner is out of production.
