Leitura e Gravação do Registro do Windows - JAVA

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package viruspendrive;

/**
 *
 * @author Anderson M. Neto
 */
import java.util.Map;

import com.sun.jna.platform.win32.Advapi32Util;
import static com.sun.jna.platform.win32.WinReg.HKEY_CURRENT_USER;
import static com.sun.jna.platform.win32.WinReg.HKEY_LOCAL_MACHINE;

public class Advapi32UtilTest {

    // https://github.com/twall/jna#readme
    //  you need 2 jars : jna-3.5.1.jar and platform-3.5.1.jar
    public static void main(String[] args) {
        System.out.println(Advapi32Util.registryGetStringValue(HKEY_CURRENT_USER,
                "Software\\Microsoft\\Internet Explorer\\Main", "Search Page")
        );
        System.out.println(Advapi32Util.registryGetStringValue(HKEY_LOCAL_MACHINE,
                "Software\\Microsoft\\Windows\\CurrentVersion\\App Paths\\AcroRd32.exe",
                ""));
        System.out.println(Advapi32Util.registryGetStringValue(HKEY_LOCAL_MACHINE,
                "Software\\Microsoft\\Windows\\CurrentVersion\\App Paths\\AcroRd32.exe",
                "Path"));
        System.out.println(Advapi32Util.registryGetIntValue(HKEY_LOCAL_MACHINE,
                "Software\\Wow6432Node\\Javasoft\\Java Update\\Policy",
                "Frequency"));
        String[] keys = Advapi32Util.registryGetKeys(HKEY_CURRENT_USER,
                "Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings"
        );
        for (String key : keys) {
            System.out.println(key);
        }
        Map<String, Object> values = Advapi32Util.registryGetValues(HKEY_CURRENT_USER,
                "Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings"
        );
        for (String value : values.keySet()) {
            System.out.println(value);
        }

        System.out.println(Advapi32Util.registryKeyExists(HKEY_CURRENT_USER, "Software\\RealHowTo"));
        Advapi32Util.registryCreateKey(HKEY_CURRENT_USER, "Software\\RealHowTo");
        System.out.println(Advapi32Util.registryKeyExists(HKEY_CURRENT_USER, "Software\\RealHowTo"));
        Advapi32Util.registrySetStringValue(HKEY_CURRENT_USER, "Software\\RealHowTo", "url", "http://www.rgagnon.com");
        System.out.println(Advapi32Util.registryValueExists(HKEY_CURRENT_USER, "Software\\RealHowTo", "url"));
        System.out.println(Advapi32Util.registryValueExists(HKEY_CURRENT_USER, "Software\\RealHowTo", "foo"));
    }

}