In Windows 7 development machine, suddenly I got following error when starting the ESSO service.
Windows could not start the Enterprise Single Sign-On Service
If check the windows event viewer, we can see,
Could not create SSOSQL. To fix the problem, reinstall SSO or try 'regasm SSOSQL.dll' from a Visual Studio command prompt.
Error Code: 0x80131700
I ran “regasm” and it is worked.