Error message...

Questions, comments and suggestions concerning VintaSoft Twain .NET SDK.

Moderator: Alex

Post Reply
Posts: 1
Joined: Fri Oct 16, 2009 4:23 pm

Error message...

Post by aligocmen » Fri Oct 16, 2009 4:37 pm

hi Alexey,
i made a simple page with library and i deployed it on ISS..
well, its working till i clikced on Scan Button..Appear a message box :

'Document.Formathttp.ShowUI' Null or not an Object

How can i fix it?


Site Admin
Posts: 1565
Joined: Thu Jul 10, 2008 2:21 pm

Re: Error message...

Post by Alex » Sat Oct 17, 2009 9:26 am


I think you have problem because VSTwain object is not initialized correctly. Please send more information about the problem to

Best regards, Alexander

Post Reply