Quote: "its impossible"
Actually, no it's not. Please make sure you know what you're talking about before stating that to others new to it

No offence, but it could make others get wrong ideas. If you're not sure about it, then just say you aren't
http://darkbasicpro.thegamecreators.com/?f=enhancementpack
Quote: "File Mapping
Sharing data between multiple programs running on the same computer can often be difficult. The File Map commands provided in the expansion pack makes this process much simpler. When creating a file map a global, shared amount of memory will be set up in the Operating System. This can then be read and written to by a Dark Basic Professional application. Then either other Dark Basic Professional applications or applications written in other programming languages that natively support file mapping can access the shared memory."
I think this would make you able to share something like variables through two programs running on the same Computer. Since you can share global data. I have never used it myself though.
I actually think they use this in FPS Creator to communicate between the different "stages" of the program. But I'm not completely sure.
I don't know if there's a free alternative to do this with DBPro though.