As you are creating a schedule within Snap Creator along with the option for daily, weekly, etc there is an option for cron.
This just uses a cron style command to support more advanced scheduling scenarios.
It works equally well in windows as it does in other operating systems as it is a function of the quartz scheduler used in Snap Creator.
Here is a screenshot of this function with a cron comand:

Sorry I didn't make this clear earlier
Hope this helps,
John