Calls to Win32 API

I've been looking on Google all morning and I haven't found a straight answer. Is there a library or package in the Java API that allows us to call exported functions from Window systems DLLs? I'm mainly interested in setupapi, user32, and cfgmgr32 DLLs. I found there was once a com.ms.win32 package in Java 2.0, but I don't see any reference to it the Java 6.0 API documentation. There is the JInvoke software I could purchase, but is there something free? I found some code examples using JNI, but the examples discussed creating my own DLL and call javah to create a C header file; I don't want to do that, either.

I would appreciate just a little guidance on this issue, please.

Thanks!

JNI. You don't need to create your own DLL if you already have a DLL to call. A naive web search:

http://java.sun.com/docs/books/jni/html/stubs.html#27578
http://www.codeproject.com/KB/java/jnibasics1.aspx
http://edn.embarcadero.com/article/20679

Do any of those help?

Thanks! The last one I came across earlier and didn't seem to quite fit what I want to do. But I'll review the other two.