Vagrant.bat file should look like this...

Please: I changed REM directives to much nicer "::" format (valid from day one in DOS), i fixed two typo bugs that I reaised issues but they are still unresolved after two months, and lastly, I fixed a problem when user interrupted .bat file execution (and that has been leaving environment in a mess). With this fixed variables, you can execute normal Ruby and Vagrant, in the same shell, at the same time, without messing each other.