I have an Access front-end which calls a stored procedure to execute an SSIS job. This worked fine until about a week ago, now any attempt to run the jobs throws the error:
The EXECUTE permission was denied on the object 'sp_start_job', database 'msdb', schema 'dbo'.
I think this might have arisen as a result of a Windows update, but although I've searched thoroughly all over the internet I can't find a solution that works. The jobs run normally when invoked via SSMS.