Hii,, Scenario: Windows 2008 R2 SCOM 2007 R2 and SQL 2008 SP1 on different servers. Issue: SCOM reportingis not working and giving below error. Error: Cannot initialize report. Failed to load expression host assembly. Details: Note: The following information was gathered when the operation was attempted. The information may appear cryptic but provides context for the error. The application will continue to run. Microsoft.Reporting.WinForms.ReportServerException: Failed to load expression host assembly. Details: Could not load file or assembly 'Microsoft.EnterpriseManagement.Reporting.Code, Version=6.0.0.0, Culture=neutral' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) (rsErrorLoadingExprHostAssembly) at Microsoft.Reporting.WinForms.ServerReport.GetExecutionInfo() at Microsoft.Reporting.WinForms.ServerReport.GetParameters() at Microsoft.EnterpriseManagement.Mom.Internal.UI.Reporting.Parameters.ReportParameterBlock.Initialize(ServerReport serverReport) at Microsoft.EnterpriseManagement.Mom.Internal.UI.Console.ReportForm.SetReportJob(Object sender, ConsoleJobEventArgs args) I can access http://localhost/reports and http://localhost/reportserver from the SQL nad RMS also. When trying to generate the reports from above mentioned link from SQL server, I got below error, Failed to load expression host assembly. Details: Could not load file or assembly 'Microsoft.EnterpriseManagement.Reporting.Code, Version=6.0.0.0, Culture=neutral' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) (rsErrorLoadingExprHostAssembly) Please Suggest.Regards, Syed Fahad Ali

Thnx for your response. As I replaced the Microsoft.EnterpriseManagement.Reporting.Code.Dll for System Center Service Manager Installation requirement, now after replacing with default one my issue has been resolved and SCOM reporting is working fine. But now I am facing issues in SM reporting and I will post the issue on Service Manager Forum.Regards, Syed Fahad Ali