or download this
C:\strawberry\cpan\build\IO-React-1.03-52FBIM
> set | find /I "path"
...
;C:\Program Files\PuTTY;C:\Users\bob;C:\Program Files\GnuWin32\bin
PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
PSModulePath=C:\Windows\system32\WindowsPowerShell\v1.0\Modules\