I am having a similar problem with my application running on Windows 2003 Server SP1. The application works fine on XP professional and Win2K Professional. On the server, however, my application (and DotTwain) does not find the scanner. My fear is that TWAIN doesn't work properly on 2003 server. Has anyone out there had any success using DotTwain on a 2003 server?

Steve,

Check your 2003 system and make sure there is only one copy of "twain_32.dll" on it. It should be located in the main Windows directory. If it's found somewhere else, this could be the problem.

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Glenn Chittenden Jr.
Atalasoft Development Team

I have a similar problem.

I use a Fujitsu 4120C, it supports TWAIN and ISIS. Using the TWAIN drivers, everything works fine. However, when using the ISIS drivers, it does not work fine.

I uninstalled the TWAIN drivers (just to be sure) and can confirm that the ISIS driver works (I used PixTrans' test app for this, it identifies my ISIS driver as "fi4120").

In my test code, the methods

• Atalasoft.Isis.IsisController.Devices.Count
• Atalasoft.Isis.IsisController.Devices.RefreshList
• Atalasoft.Isis.IsisAcquisition.Devices.Count
• Atalasoft.Isis.IsisAcquisition.Devices.RefreshList

all return zero.

I ran the two ISIS demo's ("ISIS Demo" and "ISIS Settings Demo", VB Source menu). One demo uses IsisController.Devices.Count and the other uses IsisAcquisition.Devices.Count.  Both demo's start with a dialog box that says "No ISIS devices were found on your system".

Is there any other way to access the ISIS drivers than through the methods mentioned above?

Anyone have any idea why DotImage does not recognise my scanner driver?

1. Make sure you are using the latest version of DotImage.

2. Look in the "Program Files\Atalasoft\DotImage 6.0\Bin\CaptureResources\Isis\Resources" folder for a file named "Atalasoft.DotIsis.CHN".  Copy that file to your "Windows\PixTrans" folder and try running the demo again.

If the above does not solve the problem, then open a support case so we can look into this more deeply. 

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Glenn Chittenden Jr.
Atalasoft Development Team

Thank you!

Copying the file did the trick.