Lately in the forum we have been getting a lot of requests for charting Libraries for windows while there are a lot of options for commercial libraries. Not so much in terms of free ones. The best I have come across is Dislin by the Max Planck Institute but the biggest problem is that it draws in its own window or you can save the chart as a jpg and load it into your app. It doesnt just draw on a device context and be done with it. In windows device contexts are very important for displaying on screen or on a printer and everything else for that matter. Anyway it struck me that in these cases its time to build your own library that does things the way you want it to.