> I am very new to java environment... can u pls brief
> abt JNI and sample code to invoke a DLL using JNI
JNI is basically the Java - C++ bridge for you to do sth cannot be done in Java due to various constraints. In this way you write C++ program through Windows SDK to call the DLL and return the value to Java by JNI.
More detail can be found on the official website.