tzupdater for Windows XP JRE

getting error message as follows trying to update JRE 1.4.2_09

Microsoft Windows XP [Version 5.1.2600]

(C) Copyright 1985-2001 Microsoft Corp.

H:\>c:

C:\>cd windows

C:\WINDOWS>cd temp

C:\WINDOWS\Temp>java -jar tzupdater.jar

Exception in thread "main" java.lang.UnsupportedClassVersionError: com/sun/tools

/tzupdater/TimezoneUpdater (Unsupported major.minor version 48.0)

at java.lang.ClassLoader.defineClass0(Native Method)

at java.lang.ClassLoader.defineClass(Unknown Source)

at java.security.SecureClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.access$100(Unknown Source)

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClassInternal(Unknown Source)

C:\WINDOWS\Temp>

[1200 byte] By [saspgmra] at [2007-11-26 18:37:28]
# 1
Are you sure that the java in your path is really a 1.4.X version?Show the output of java -version before running the tzupdater.jar file..It looks like you're trying to use an older JVM.You'd get this error if you tried to run tzupdater.jar with 1.2.2, or 1.3.X
hydr0gen1a at 2007-7-9 6:11:32 > top of Java-index,Desktop,Runtime Environment...