I had installed CRM 4.0 and after that installed R/3 (ECC 5.) on the same machine and assigned SIDs were CRP (Crm Sever) and ERP (R/3 ECC5.0)
After successfully installation of both CRM and ERP only ERP gets started not CRM. Also there is only one entry for ERP in Windows MMC Console.
If any one face the same situation give the solution.