For some time now, I have been unable to open graphic files on my hard drive. When I try to do so, with a right click or left click, I get a message Error starting program - a required .dll file TWAINPP was not found. I have tried uninstalling the scanner software - and gone into regedit and deleted references to Canon and found TWAIN files and deleted it and then reinstalled the software - nothing has worked. Now, I wonder if I should run a restore of the original system software. The Canon scanner won't work any more either even with downloading and installing newest drivers from their website. All help greatly appreciated.
Norm72