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is twain_32.dll cmpatible with windows 10 ?

Posted on 2016-08-06
Medium Priority
Last Modified: 2016-08-13
Hello Experts,
I am getting the error screen attached as aa.jpg

When I try to register the twain_32.dll in folder system32 I get image bb.jpg
and when I try to register in folder syswow64 I get image cc.jpg

how can I register twain_32.dll in win 10 ?

Question by:rguillermo
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Author Comment

ID: 41745183
Hi  following a thread I found on google
I copied the file twain_32.dll also to folder c:\windows\system\
now I get a differente error message as attached...

so now the library is in three folders system,system32 and syswow64
Hope this helps...
LVL 83

Expert Comment

by:David Johnson, CD, MVP
ID: 41745198
where did you get this .dll and who is it signed by?

Author Comment

ID: 41745202
Hi David,
I just googled it. But cant tell now from where I downloaded it because i visited so many places searching for a solution...
Do you have a specific download ? Please ?
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LVL 83

Expert Comment

by:David Johnson, CD, MVP
ID: 41745370
Windows normally comes with twain_32.dll.. I think your problem is calling unmanaged code from managed code

Author Comment

ID: 41745376
Can you please explain what is "calling unmanaged code from managed code"
and what canI do to recover my twain_32.dll I may have overwriten my original....
thank you
LVL 49

Expert Comment

ID: 41745393
twain_32.dll should be in the C:\Windows folder.

Check for it there.  Under Properties for that file should be the following:

File version
Product version

Also do that for the other versions in your computer and report back what you find.
LVL 83

Accepted Solution

David Johnson, CD, MVP earned 2000 total points
ID: 41745576
sfc /scannow will repair your operating system

Author Comment

ID: 41748390
After performing a sfc -scannow I found :

c:\windows\twain_32.dll                      file version product version
LVL 49

Expert Comment

ID: 41748482
Get rid of the one in c:\windows\system32

If the one in c:\windows\syswow64 was one you copied there then get rid of it as well.

Author Closing Comment

ID: 41754622
yes after the sfc and erasing indicated files we are back to normal
Thank you !!!

Thanks to all Experts !!

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