Sometimes it is not possible to edit the PATH variable on your Computer. – In my case the admin blocked the panel – but my user has sufficient rights to do so.
Be carefull. Do save your Environment variable somewhere in a textfile.
It is possible to damage your system.
You can call the script with the cscript scripting host.
Don’t forget to reopen a new Shell to see the result of your effort.
The current Command-Shell does not show any differece