crystal reports runtime engine for .net framework for development

Hi ,

Can someone advice where can i find sap crystal reports runtime engine for .net framework  for development.

which can i excute  this code succssfully ,

static void Main(string[] args)

        {

            RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Wow6432Node\SAP BusinessObjects\Suite XI 4.0\Report Application Server\Server\LocalConnectionMgr");

            string tempFilePath = key.GetValue("ReportDirectoryPath").ToString();

            string tempFile = tempFilePath;

            tempFile = tempFilePath + "\\Agents Above or Below Standard- by Form.rpt";

            ReportClientDocument crystalReport = new ReportClientDocumentClass();

            object path = (object)tempFile;

            //write file to temp folder

            crystalReport.Open(ref path, 0);

            //WriteFileToDisk(rptFile.tblRptFile.FindByiRptID(templateData.tblTemplate[0].iRptID).imgReport, tempFile);

        }

Thanks

Fade ismaeel