You can distribute Vintasoft.Twain.dll, Vintasoft.WinTwain.dll, Vintasoft.WpfTwain.dll, Vintasoft.Sane.dll, VintasoftTwainService.exe and VintasoftTwainService.dll from VintaSoft Twain .NET SDK as part of your application only if you have got a license for the SDK.

The full list of files, which may be distributed as part of your application, are listed in paragraphs 4.6 and 4.7 of the license agreement.

DLLs must be placed in the same folder as the assembly that references it. Make sure that the version of DLLs you distribute is the version your assembly was compiled with.