I\'m creating a Java application that will do some processing then needs to display a message to give the user feedback.
However, it appears to be incredibly slow -
Do you NEED to use java to display the message box? IF the box is coming from outside of your application, then you might want to use something else to generate a dialog.
To make a native windows app that just shows a message box from a command line string would only take a few hours at most. Most of the common scripting languages should have ways to do it too. here's an example from some guy through javascript via command line:
http://www.snee.com/bobdc.blog/2009/01/displaying-a-message-box-from.html