You need to set the EnableParameterPrompting property of the Report object to False.

oCR = CREATEOBJECT("CrystalRuntime.Application")
oRpt = oCR.OpenReport("C:\CR\MyReport.RPT")
oRpt.EnableParameterPrompting = .F.

>It's working ok now. However, even through I'm passing the parameter values correctly, the viewer is still prompting for the parameters ( I suspect during the .Viewreport ). Is there a way to prevent this?
>
>thanks