Plug-N-Scan 600 III EP, Plug-N-Scan 600 III EP Plus,
Twainscan 600 III EP & Twainscan 600 III EP Plus.

TWAIN Drivers

InstallationInstructions Below

If your scanner is a 30-bit 600 III EP Plus, it shipped with driverversion 1.6, which places a program called watchdog.exe in the startupgroup. If your scanner is a 24-bit 600 III EP, the driver that came withit will not have the watchdog.exe program in the startup group as explainedbelow.

Driver 2.2, will work with both scanners. It places watchdog.exe inthe startup group. Retain these instructions in the event that you obtainanother driver update in the future as you will need to remove driver version2.2�s watchdog.exe from the startup group before you will be able to installfuture driver releases.

Re-installing or Updating Drivers

Windows 95 Users
The Plug-n-Scan 600 III EP driver 1.6 includes a program called watchdog.exethat controls the scanner lamp. Watchdog.exe is installed in the StartupProgram Group in Windows 95. If you attempt to re-install the Twain driveror to install a driver update without removing watchdog.exe from the StartupGroup, you will get the following error message:

C:\WINDOWS\TWAIN\A4S2\SPICALL.DLL is in use and cannot be installed.Please exit all applications and retry. Press ignore to not install thefile and abort to cancel the installation.

Here is how to remove watchdog.exe from the Startup Group in Windows95.

1. Right click the �Start� button and choose open from menu that popsup.

2. Double click the Programs Folder icon.

3. Double click the Startup Folder icon.

4. Highlight Watchdog and press the DEL key on your keyboard to deletewatchdog.exe.

5. Reboot your computer.

6. You should now be able to install the version 2.2 driver update asexplained below.

Windows 3.x Users
If you have Windows 3.1x, simply reboot your computer and you shouldbe able to re-install your software or install a driver update.

If rebooting does not disable watchdog.exe, use the File Manager orMS-DOS commands to delete the following file:

C:\WINDOWS\TWAIN\A4S2\WATCHDOG.EXE

You should now be able to install the version 2.2 driver update as explainedbelow.

Driver 2.2 Installation inWindows 95 and Windows 3.1x

To install driver version 2.2, insert the disk in your floppy drive.Windows 95 users click �Start� then �Run� and type in A:\run then click�OK.� Windows 3.1x users click �File� choose �Run� and type in A:\run thenclick �OK.� Follow the onscreen prompts to complete.

If the above steps don�t solve your problem, you should contact TechnicalSupport at (714) 247-1300.