expression encoder 4 sdk c# wmv problem

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C#

expression

I am using the Expression Encoder SDK 4 and when I send the video to display the preview it works.

The zip file is only 3k though. My code is shown below:

LiveJob job = new LiveJob();
job.AddDeviceSource(null,null);
job.OutputFormat.VideoProfile.FrameRate = 15;
job.OutputFormat.VideoProfile.Size = new Size(320,240);

fileOut = new FileArchivePublishFormat();
fileOut.OutputFileName = String.Format(textBox1.Text+"{0:yyyyMMddhhmmss}.wmv", DateTime.Now);
 
job.PublishFormats.Add(fileOut);
 
deviceSource = job.AddDeviceSource(video, audio);
deviceSource.PreviewWindow = new PreviewWindow(new HandleRef(panel1, panel1.Handle));

job.ActivateSource(deviceSource);
job.StartEncoding();

Does anyone have any tips?