'raco' is not recognized on the windows 10 command line

I'm trying to get familiar with DrRacket plugin framework, and I'm using the following tutorial:

https://lang.video/blog/2018/03/21/making-an-ide-plugin-for-drracket/

I'm stuck at the step where raco is used:

When i run the command, my windows 10 operating system gives back the following error message, How can i solve this?:

'raco' is not recognized as an internal or external command, operable program or batch file.

second question:

I've also tried putting the clippy folder into a folder within my program files, in the DrRacket installation. Is this the location where Racket Plugins should reside, or can they be placed in any folder?

Add racket and raco to your Windows PATH (the directories in which Windows looks for commands).

https://beautifulracket.com/setting-the-windows-path.html