Problem with delegates

[C# Programming]

Hi all,

I have seen a solution,which deals with File download in web browser.
and the bellow code gives error
can some one help me what is the problem here...

//make a thread to look for the dialog
Thread workThread = new Thread(delegate()
{
FindDownloadDialogWindow("#32770", "File Download", 120,
});

From here i tried download dialogue (http://brokethebuild.blogspot.com/)

thanks