because of a rant in https://sourceforge.net/p/webadmin/bugs/5332/ I updated the messages of setup,bat:
- the script is unoffical and try to guide unexperienced users
- offical information about setup is found at https://sourceforge.net/p/webadmin/bugs/5332/
As I don't know if Jamie supports and test Windows Installation or it's a "may work or not feature" we should also highligth the Windows support status an the offical page.
