Hi All,

Even I am facing the same error.

Service cannot be started. System.Exception: Default appdomain failed to initialize.

at Microsoft.ReportingServices.Library.ServiceAppDomainController.Start()

at Microsoft.ReportingServices.Library.ReportService.OnStart(String[] args)

at System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state)

My mistake , there was a collation issue and I unistall sql server Database engine not Reporting service thinking after new installation I will be able to link the reporting service to this instance.

BUt from two days I am not able to configuire RS. I did try to remove from Add / Remove program files but it failed. Even add a new RS also fails.

Please suggest , it is very important .