Well, a modal application goes against the multi-tasking design of the operating system, of course, so I think you would have to "pause" the batch operation until the app is done. It could wait for a registry/INI value to change, for example.
Mark

>I've got a really simple app that I need to be able to call from a batch file. I need the application to be "modal". That is, I need it to finish it's processing before returning control to the batch file. Any ideas on how to do this? This application has no UI.