DayBack Calendar and FileMaker 17
DayBack works great in FM17
DayBack works great in FileMaker 17. (If you're moving from FM15 or earlier there was a behavior change in FM16 that you might need to know about.)
Version 17 fails to re-point the FMP URL protocol at itself, so if you're using 16 and 17 you may need to manually tell your machine to use FM17 with DayBack. Details and instructions are here: FMP URL