Was it installed by you as an admin? Does it make any difference if a non-admin does the install?
I just installed a Documate 272 scanner. When I logged in with network administrator rights it works without problems.
When a co-worker without administrator rights logs in, it is impossible to scan a document. Always gets "unknown error 0x000000". The software running on the system tray is OneTouch 4.6
I gave full rights to any user to the Visionair folder.
We are running Windows 7 pro.