xp-cmdshell

I am seeing an error message when trying to execute xp_cmdshell from within a stored procedure. xp_cmdshell is enabled on the instance. And the execute permission was granted to my user, but I am still seeing the exception. The EXECUTE permission was denied on the object ‘xp_cmdshell’, database ‘mssqlsystemresource’, schema ‘sys’ Part of the issue is that this is a shared cluster, and we have a single database on the instance, so we don't have a full range of admin permissions. So I can't go in and grant permissions, and what-not. For users that are not members of the sysadmin role on the SQL