If Java is not recognized as internal or external command, you need to make sure that the installation is not problematic and its path is recognized as system variables.

I am trying to install v4_6 of the randomizer on windows, and when I open the .bat file, I get the the message: 'java' is not recognized as an internal or external command, operable program or batc ...

Tried this and it still doesn't work. 'java' is not recognized as an internal or external command, operable program or batch file.

If you get the “not recognized as an internal or external command” error, it’s possible that the command isn’t in one of the directories included in the PATH environment variable.

If you get the A request is not recognized as an internal or external command error, first set the correct path, and then change the value of PATHEXT.