Hi,
From your description, I believe, you need a windows application. This application would have the following features :
1 - Schedule how often the code would run
2 - Run the repetetive code.
Please provide the details of the repetitive action that needs to be performed. Please also throw some light on the "codes" and how they would be generated.
I can deliver this program to you in C#. If instead of Windows Application, if you are looking out for an excel add-in, do let me know. I can also develop the excel addins.
Regards,
Kunal