I've tried it and it says i'm running version 1.5

So if the JVM is not the issue...then what is?

I'm running on Windows 2K Pro, loading a JAR file with VC++ 6.0

Here's the code inside the methods which loads the JVM and tries to
locate the classes....
Unfortunately, I don't have the source to recompile the Test.jar
(otherwise I could probably just recompile).

bool JARLoader::LoadJavaClass( )
{
 ...
    JNIEnv* pEnv = NULL;
    jint jResponse;
    JavaVM* m_pJVM = NULL;
    JavaVMInitArgs vm_args;
    JavaVMOption options[3]; // java command line options needed

    CString sOption1("-Djava.class.path="
"C:\\JavaProjects\\Test.jar;");
    char* cOption1 = new char[sOption1.GetLength() + 1];
    strcpy(cOption1, sOption1);

    options[0].optionString = cOption1;
    options[1].optionString = "-Djava.compiler=NONE"; // disable the
JIT compiler
    options[2].optionString = "-verbose:jni"; // enable verbose
messages from jni
    ...
    ...
    vm_args.version = JNI_VERSION_1_4;
    vm_args.options = options;
    vm_args.nOptions = 4;

    jResponse = JNI_CreateJavaVM (&m_pJVM,
reinterpret_cast<void**>(&pEnv), &vm_args);

    if (jResponse != JNI_ERR) {
    delete cOption1;
    jResponse = pEnv->PushLocalFrame(6);

    if (jResponse != JNI_ERR) {
        LoadJavaClass ();
    }
    } else AfxMessageBox("Can't Start JVM\n");
}

void JARLoader::LoadJavaClass()
{
    jclass WirelessTokenClass = pEnv->FindClass
("test/blah/TestLoadClass");

    if (WirelessTokenClass != NULL){
         AfxMessageBox("TestLoadClass Found\n");
    }
    else{
         pEnv->ExceptionDescribe();
         AfxMessageBox("Can't FindClass TiccExecutor\n");
    }
}

The exception I get (when retrieved by pEnv->ExceptionDescribe())

java.lang.UnsupportedClassVersionError: xxx/xxx/xxx/TestRootClass
(Unsupported major.minor version 49.0)
       at java.lang.ClassLoader.defineClass0(Native Method)
       at java.lang.ClassLoader.defineClass(ClassLoader.java:537)
       at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
       at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
       at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
       at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
       at java.security.AccessController.doPrivileged(Native Method)
       at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
       at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
       at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)

Any help would be appreciated