Setting up Royale on Windows

[Shiffy]

 I have Royale set up on my Windows Laptop and it compiles fine.
I am now setting up Royale on a different Windows PC, and while setting up the 
environment variables I noticed that I don’t have 
ASJS_HOME or PLAYERGLOBAL_VERSION set on my laptop. Since it complies okay, I 
was wondering if and why they are necessary.
The README says they are necessary.
Thanks!