Включение параметра xp_cmdshell

— To allow advanced options to be changed.
EXEC sp_configure 'show advanced options', 1;
GO
— To update the currently configured value for advanced options.
RECONFIGURE;
GO

— To enable the feature.
EXEC sp_configure 'xp_cmdshell', 1;
GO

— To update the currently configured value for this feature.
RECONFIGURE;
GO