"C:WindowsSystem32inetsrvappcmd.exe" set config "Default Web Site/WebAPITest1 /section:connectionStrings /"[connectionString='Data Source=ABC/MN23;Initial Catalog=DBTest;User ID=user1;Password=pwd1;MultipleActiveResultSets=True;pooling=false;',name='DB1',providerName='System.Data.SqlClient']"