Note this: C:\jboss-4.2.2\bin>"C:\Program Files\Java\jdk1.6.0_07\bin\java" -version 2>&1 | | findstr /I hotspot 1>nul | 'findstr' is not recognized as an internal or external command, operable program or batch file. You are encountering the findstr problem. See http://wiki.jboss.org/wiki/FindstrCommandNotFound. As an alternative, you can comment out the lines in run.bat that use findstr: rem Add -server to the JVM options, if supported | rem "%JAVA%" -version 2>&1 | findstr /I hotspot > nul | rem if not errorlevel == 1 (set JAVA_OPTS=%JAVA_OPTS% -server) | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4175996#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...