The client machine lacks the necessary ActiveX or the RSClientPrint control. Solution: Reinstall the Report Viewer runtime with Administrator rights. For web applications, ensure the browser allows ActiveX (IE mode) or use the updated HTML5 print renderer.
Before installing, ensure your environment meets these standards: microsoft report viewer version 12.0.0.0 download
gacutil /l Microsoft.ReportViewer.Common The client machine lacks the necessary ActiveX or