Where Are Preferences Stored?

Tablo Apps Third Party Apps (Rippers etc.)
2

I would suggest posting this in the official Tablo Ripper thread as the developer is more likely to see it there.

Tablo Ripper - Automatically download new recordings - Tablo Apps / Third Party Apps (Rippers etc.) - TabloTV Community

I believe C:\ProgramData\TabloRipperis the location you are looking for as far as the settings file.