Commented Unassigned: WPF C# sample fails with null reference [21666]

Hit [start]
Select source from dialog
Webcam tally LED comes on (so far so good)
Exception dialog for "Object reference not set to the instance of an object"
Comments: ** Comment from web user: CodeLover **

same problem here ...where is the author of the web_capture dll ...atleast he should clear our problems...