>>>Any suggestions for display (and print) a dynamic chart (histogram)
>>>in my form (VFP 6.0). Thank you in advance.
>
>>Crystal Reports.
>
>I mean a control ActiveX (OCX) in my form.
>I know the MS-Chart but do not really know how to use it (put data into).
>May be other suggestions...

Yup. Crystal Reports will do it. Use the Report Viewer to display the graph.