JRE 1.5.0_11 Startup Error with MS Windows Vista. Please help!
Hi there, I am hoping that someone can help me with this very confusing problem. A friend of mine made a program for me last month using java. It works brilliantly on computers running MS Windows 2000 and XP but as soon as I installed it on one running Vista I get this error:
Startup Error
An error has occured during startup:
java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass1(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 com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
at com.exe4j.runtime.WinLauncher.main(Unknown Source)
All the computers, regardless of operating system, are running the same version of JRE.
I would really appreciate any help that anyone can give me as this problem needs to be resolved as a matter of urgency and my friend who made the software has gone on holiday and I cannot get hold of him at the moment. Also, I apologise in advance if this is the wrong section to post this problem.
Thanks!
