.NET 3.5 chart controls exception: Error executing child request for ChartImg.axd

Question

Anyone getting this error when using the new free chart controls MS bought from Dundas?

\"Error executing child request for ChartImg.axd\"

On the MSDN forum

Answer 1

Another cause for this problem can be because the application pool is set to 'Classic' mode. My handler was configured correctly, but I was getting the same error.

As soon as I switched the application pool to 'Integrated' mode. The chart control started working correctly.