I have a serious problem with ATALASOFT, Dot Twain Control Web demo does not show up in internet explorer. I did every thing in page products/DotTwain/Demos/WebDeploy/securityhowto.aspx  which is below atalasoft.

Now Atalasoft claims that if you develop a .NET windows control and put it under a html page as object that is referenced to the dll, it can work. It is particularly true, why because Atalasoft developed a control that can make scans, and  from a web  page it does not work. It does not make scans.

I think the problem is in Atalasoft Component; It comunicates the driver of scanner and make scans from it. But never transfer the images to WorkspaceViwer. When try to transfer the image to its compnents it crashes.

So, if you are developing web page scans, now that it is being still a problem in ATALASOFT. We can easily see this why ATALASOFT team don't show up with reliable answeres in cases and forums  like this one. 

I don't know what problems you're having, but using DotTwain in a UserControl embedded into a web page does work.  Numerous customers are successfully doing this, though some have had issues getting everything set correctly.

You say: "It comunicates the driver of scanner and make scans from it. But never transfer the images to WorkspaceViwer."

That tells me you have created your own control because our demo code does not use a WorkspaceViewer.  It also tells me that you are able to scan, so DotTwain must be working correctly.  As for transferring the scanned image to a WorkspaceViewer, how are you trying to do it?