Is there an easy what to show the preview / thumbnail of a CAD file in VB.NET. I have tried, without luck to use the "DWGTHUMBNAIL.OCX" control and it give me errors. If a make a standalone application and run it, it works fine. But when I compile it to a DLL, and run it under AutoCAD, it gives me the error message that I have attached as an image.. I have heard of the acPreview, but can't find that anywhere. Thanks in advance for your help.
William
