Scheduling Business Services

I have several Business Services which I need to run once on each trigger.

Trigger can be either:

• Specific time (so once a day, every day)
• Specific day (so once a month, every month)

For the time, it would be stable (i.e. 0100), but the second case varies - one month it could be 10th, another month - 12th.

After each run I want the service to turn off, so that all the time the service is not running it would be colored grey in Production Management Page.

I plan to use Task Scheduler, but open to suggestions.

Thoughts? Ideas? Code?