Yesterday I upgraded a Windows Server 2008 R2 server from SQL Server 2005 SP4 to SQL Server 2008R2 SP2 in place. SQL Server runs fine, but SQL Server Agent will not start with the error "Error 2: The system cannot find the file specified". The system event log shows this error as coming from the Source Control Manager, with event ID: 7000 with keyword Classic.
During the installation yesterday this error was found in the Application Event log:
".NET Runtime Optimization Service (clr_optimization_v4.0.30319_64) - Failed to compile: C:\Program Files\Microsoft SQL Server\100\DTS\Binn\dtsinstall.exe . Error code = 0x800700d8"
Any assistance will be greatly appreciated.