I typed "butler -V" with quotes.
It says:
"'butler' is not recognized as an internal or external command, operable program or batch file."
Viewing post in Butler runs for 1 second, then closes.
Okay, that means you have not added the directory which contains butler.exe into the PATH environment variable. Here’s a link to an explanation on how to do that: https://itch.io/t/605771/itchios-butler-easy-and-short-tutorial
I know this all seems very convoluted, and it is, but trust me when I say that it’s Windows’ fault :).