Use the Agent XPs option to enable the SQL Server Agent extended stored procedures on this server. When this option is not enabled, the SQL Server Agent node is not available in SQL Server Management Studio Object Explorer.

When you use the SQL Server Management Studio tool to start the SQL Server Agent service, these extended stored procedures are enabled automatically. For more information, see Understanding Surface Area Configuration.

Note:
Management Studio Object Explorer does not display the contents of the SQL Server Agent node unless these extended stored procedures are enabled regardless of the SQL Server Agent service state.

The possible values are:

• 0, indicating that SQL Server Agent extended stored procedures are not available (the default).
  
• 1, indicating that SQL Server Agent extended stored procedures are available.
  

The setting takes effect immediately without a server stop and restart.

sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO
sp_configure 'Agent XPs', 1;
GO
RECONFIGURE
GO