Blitz3d SDK in Java

I'm trying to use the SDK with java using JNI but i'm getting an "Unsatisfied link error", as if the function names didn't exist. But i'm sure they exist.

I checked the spelling (cases parameter types) of the function and they are all right

package helloB3D;

public final class HelloB3D {
	public static native int bbBeginBlitz3D();
	public static native int bbEndBlitz3D();

	public static void main(String[] args) {
		System.loadLibrary("b3d");
		bbBeginBlitz3D();
		bbEndBlitz3D();
	}
}

the dll is in the "System32" folder

As far as i understand it's not that simple: you need to create a c/c++ proxy methods that will interact with blitz sdk and your java program via JNI.