Java Programming

Hi,

I found many sample code like this one on the internet

http://www.tactika.com/realhome/javadetails/java-0630.html
// http://javabyexample.wisdomplug.com/java-concepts/34-core-java/62-java-registry-wrapper.html
// http://www.snipcode.org/java/1-java/23-java-class-for-accessing-reading-and-writing-from-windows-registry.html
// http://snipplr.com/view/6620/accessing-windows-registry-in-java/

showing how to read a string registry value (using private method of the jdk through reflection)

But trying to read a DWORD value, program fails (return null).

Any one able to achieve that ?
(I need read and write DWORD key value)

thanks!