SpeedTracePro has saved me tremendous time. When I’m trying to debug 3rd party code and my own modules there is no substitute. Specifically, this tool has helped me develop solutions which required using entirely undocumented and unsupported libraries.

The application when started, attaches to a running program (IIS) and does a full record of the stack trace. This lets me open the analyzer to see the methods called, their sequences, their input variables, and output responses.

Here is a screenshot of tracing inputs and outputs: (click image for large view)

Watch SpeedTracePro in action, click any of the video formats to open (hi-def):

• M4V Chrome
• OGV Firefox
• WMV Internet Explorer

Here is the HTML5 video tag but will likely be grainy: