import com.jacob.com.Variant;
import com.jacob.activeX.ActiveXComponent;

ActiveXComponent shell = new ActiveXComponent("Shell.Application"); 
Variant hwnd = new Variant(0);
Variant title = new Variant("Hello, COM(Jacob) World!");
Variant option = new Variant(0);
Variant rootFolder = new Variant(36);
Variant[] params = new Variant[] { hwnd, title, option, rootFolder };
Object folder = shell.invoke( "BrowseForFolder", params );