[kvg6]

Что-то типа того:

    Application     = new COM("CrystalRuntime.Application");
    Report          = Application.OpenReport(filenameRpt, 1);
 
    Fields          = Report.ParameterFields();
    field           = Fields.item(1);
    field.setCurrentValue(01\01\2007);
    field2          = Fields.item(2);
    field2.setCurrentValue(31\12\2007);