JRuby on windows weirdness

gistfile1.txt

Microsoft Windows [Versjon 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. Med enerett.

C:\Windows\system32>where java
C:\Windows\System32\java.exe

C:\Windows\system32>java -version
java version "1.7.0"
Java(TM) SE Runtime Environment (build 1.7.0-b147)
Java HotSpot(TM) 64-Bit Server VM (build 21.0-b17, mixed mode)

C:\Windows\system32>ruboto

                Ruboto -- Ruby for Android 0.12.0.rc.0
                Execute `ruboto gen app --help` for instructions on how to gener
ate a fresh Ruby-enabled Android app
                Execute `ruboto --help` for other options


C:\Windows\system32>ruboto --version
Cannot find Java 1.5 or higher.

C:\Windows\system32>ruboto --version
Cannot find Java 1.5 or higher.

C:\Windows\system32>jruby -v
jruby 1.7.4.dev (1.9.3p392) 2013-04-07 7b44855 on Java HotSpot(TM) 64-Bit Server
 VM 1.7.0_21-b11 [Windows 7-amd64]

C:\Windows\system32>jruby --version
jruby 1.7.4.dev (1.9.3p392) 2013-04-07 7b44855 on Java HotSpot(TM) 64-Bit Server
 VM 1.7.0_21-b11 [Windows 7-amd64]

C:\Windows\system32>ruboto --version
Cannot find Java 1.5 or higher.

C:\Windows\system32>ruboto --version
Cannot find Java 1.5 or higher.

C:\Windows\system32>
C:\Windows\system32>jruby -S ruboto --version
0.12.0.rc.0

C:\Windows\system32>ruboto --version
Cannot find Java 1.5 or higher.

C:\Windows\system32>ruboto -v
invalid option -- v

C:\Windows\system32>ruboto --version
Cannot find Java 1.5 or higher.

C:\Windows\system32>