I'm trying to dysplay a chart on a form but I can't understand how msChart works. I tried to use the VFP graph wizard but it tells me that MsChart is not properly installed, but it is !!

The VFP graph wizard uses MsGraph ( which is a part of the Excel graphine engine ) and not MsChart ( which is an activeX control ).

Download the white paper and code samples from the tools and utilities page of my web site from the session entitled "Creating Graphs in VFP". There are explanations and samples for both MsChart and MsGraph as well as Ecel automation.