SimpleCron
Simple Scheduler for Windows clients configured by a crontab-like file
...://www.java.com/download.
* Select some program folder (e.g. C:\Program Files (x86)), download SimpleCron.zip there, and unpack it (=> <ProgramFolder>\SimpleCron).
* Execute (by double clicking) InstallSimpleCron.vbs (this will establish the work folder C:\Users\<user>\AppData\Local\SimpleCronSimpleCron, create an entry in the Startup (AutoStart) folder, and start SimpleCron)
* SimpleCron will (after start) remind you to edit the crontab as soon as possible.