set ADDpath=%%JAVA_HOME%%;
reg query "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Session Manager\Environment" /v "Path"|find /i "%ADDpath%"||(reg add "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Session Manager\Environment" /v PATH /t REG_EXPAND_SZ /d "%ADDpath%%PATH%" /f)