>I am currently writing two applications that need to do some limited communication between themselves. The first application is the UI application and the 2nd application is a worker/processing application (might be running on a different server).
>Sometimes I would like the 1st application to be able to tell the 2nd application to take a pause so that the 1st application can have full control.
>At this stage I am gathering ideas on how this could be solved.
>Any thoughts would be appreciated.
>
>Thanks,
>Einar

Einar,

Make the worker/processing 'application' a Windows Service. Setting it up is quite easy when you use a Windows Service project template in VS.NET. Once that is set up, you can communicate with it using Microsoft Message Queue (which is built into 2000/XP and NT/2000/2003 server). The messaging is flexible and 'disconnected'.