Java HotSpot Virtual Machine

Hi all.
I am working with Canon Camera and Java, i got SDK of Canon and also had some DLL file : (EDSDK.Dll ...)
I write some example code

public class EDSDK{
 public native static int EdsInitializeSDK();
static {
System.load("C:\\Java\\CameraDemo\\ EDSDK.Dll");
}
public static void main(String[] args){
EDSDK.EdsInitializeSDK();
}
}

when i run this code, it appears wrong message.

Exception in thread "main" java.lang.UnsatisfiedLinkError: EDSDK.EdsInitializeSDK()I
    at EDSDK.EdsInitializeSDK(Native Method)

Have you had some experiences with Canon SDK ? Please help me that Java can work with them ?

Thanks in advance
Diego

Edited by: Diego