open unknown file extensions with java

[Alina Hila]

Hello
Please help me with the following: i am trying to open a file with a specific application using java. I am working on a desktop application.
The following code using java.awt.Desktop works for known extension types,but when trying to open a file with an unknown extension it throws an exception. I know this is about to happen, because it's in the class documentation, but what i want to ask you is if there is another way of popping up the windows "open with" dialog through java. I just don't want to let unknown extension file types untreated. This is the code i use, and it works,just that it throws an exception for unknown file types:

  
import java.awt.Desktop
      ...
      if (Desktop.isDesktopSupported()) {
      desktop = Desktop.getDesktop();
      temp = new File(localPath);
      desktop.open(temp);
      }
 

Thank you very much


A later review :

the problem was solved running a windows process:

String str = "RUNDLL32.EXE SHELL32.DLL,OpenAs_RunDLL";
r = Runtime.getRuntime();
Process p = r.exec(str + "C:\\test.txt");

[ August 10, 2008: Message edited by: Alina Hila ]