TWAIN problems in Windows 2003 Server

[Steven Larkin]

Hi,

I have just upgraded one of my PC's to Windows Server 2003 (origionaly
98). I had previously bought an Epson Perfection 660 for that Pc and
it worked perfectly with win 98. But after upgrading to 2003 Server no
Twain applications could detect the scanner. After struggeling for
some time I switched on WIA (disabled by default), this allowed
windows to detect it, but applications (such as Irfan View and my OCR
applications) failed to detect it as a TWAIN device. The only
application that can see it (and only by assigning it to the 'scan'
event) is photoshop. Scanning in Photoshop is great but I also want to
use my OCR applications which fail to detect any TWAIN devices.

I have also tryed the scanner on XP and it again works perfectly. I
also own a digital camera which i use on my XP machine, when I tryed
to install this on 2003 Server i have the same problem.

I hope someone here knows what i'm doing wronge (i don't). Thanks a
lot.

Steven Larkin

 

[Hecate]

I hope someone here knows what i'm doing wronge (i don't). Thanks a
lot.

As a first guess, upgrading Win98. Nearly all the problems I've seen
with newer versions of Windows are caused with an upgrade from 98/ME.
You really need to do a complete, fresh install.

 

[Mr. Grinch]

As a first guess, upgrading Win98. Nearly all the problems I've seen
with newer versions of Windows are caused with an upgrade from 98/ME.
You really need to do a complete, fresh install.

I agree. Here is my experience.

I am running Windows ME and Server 2003 in dual-boot mode. ME is on C:, 2003
is on D. They don't share any info. Both are "fresh" installs. No upgrade
was done.

To the best of my knowledge, TWAIN does not use the WIA service. In fact, I
have the WIA service disabled right now.

My scanner is a Mustek 1200 CU. The closest driver match for this scanner
under 2003 is the XP TWAIN driver.

When I first tried to install this driver, it complained that the OS was not
Windows XP and refused to install. I then edited the product name key in the
windows registry using regedit. I changed it from windows server 2003 to
windows xp. This allowed me to run the Mustek XP driver install program.

The other thing is that the driver is not signed. XP / 2003 don't like to
install unsigned drivers. Under Computer / Properties / Hardware / Driver
Signing, I have it set to Ignore. I found that Warn was preventing drivers
from getting installed even if I told it to go ahead and install the driver.

With these changes, I finally got the driver installed. The scanner was
found and shows up in Control Panel > Scanners and Cameras. I used IrfanView
3.90 and it can scan from the scanner just fine. It brings the scanner GUI
up and lets me pick my settings and preview / scan.

Then I installed TWAIN drivers for my Canon Elph S100. These drivers
conflicted or over-wrote the Mustek drivers, such that I could now read
images from the Camera, but I could no longer read images from the Scanner.
The Scanner TWAIN driver now appeared to be broken.

I re-installed the XP drivers for the Scanner and it worked again. For the
camera, I have a SanDisk Compact Flash USB card reader, and pull images off
the memory card that way. No TWAIN driver required.

I've tried enabling WIA and using software which scans via WIA, but I've
never gotten it to work. I've always ended up using the TWAIN driver.

Hope this helps.