Take a look at the Microsoft Message Queue. I have never used it, but my understanding is it will let you pass a message from one application to another.
zahid

>I have a VFP exe running with a visual presentation of records in a grid. This particular screen is a visual class. A separate exe(not VFP) will run a vfp com dll to update the records in the table the exe is displaying in the grid. How can I also have this dll refresh the screen in the original vfp exe.
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>In other words; can this com dll talk to the exe that is already running? I'm new to this com process and am wondering if I can do this. I can't re-write this entire VFP app in the amount of time given but am planning on pulling some of the non-visual code out into dll's that other programs in this suite can use. However I need to be able to still talk to the original VFP exe in some fashion that will also be running. Is there some way of doing this without using DDE?
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>Confusing, isn't it?
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>Any help would be much appreciated.