Problem running in user account when username contains utf characters

Here is a simple test program (for jna 3.5.2):

import com.sun.jna.platform.win32.Kernel32Util;
public class Test
{
    public static void main(String[] args)
    {
        String s = Kernel32Util.getComputerName();
        return;
    }
}

When I test it on win7 account цц (2 cyrillic characters), I get the following exception:

Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\Users\??\AppData\Local\Temp\jna1644595665224573683.dll: Can't find dependent libraries
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1928)
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1825)
    at java.lang.Runtime.load0(Runtime.java:792)
    at java.lang.System.load(System.java:1059)
    at com.sun.jna.Native.loadNativeLibraryFromJar(Native.java:752)
    at com.sun.jna.Native.loadNativeLibrary(Native.java:737)
    at com.sun.jna.Native.<clinit>(Native.java:129)
    at com.sun.jna.Pointer.<clinit>(Pointer.java:42)
    at com.sun.jna.platform.win32.WinBase.<clinit>(WinBase.java:35)
    at com.sun.jna.platform.win32.Kernel32Util.getComputerName(Kernel32Util.java:41)
    at Test.main(Test.java:7)

When I test it on win7 account xx (2 'normal' characters), all goes fine.
This is heavy if you want to ship to russia or the most places in the world.
What may I do with this ?

Start with the native-loading path in Native.java, especially Native.loadNativeLibraryFromJar and Native.loadNativeLibrary, using the supplied Test program on Windows 7 with a Cyrillic username. Investigate why the extracted DLL path is represented with question marks, then verify that the program runs successfully under a non-ASCII account.