Test for multiple of your apps open?

[ChrisB]

That's not the part I'm having trouble with, but sending data is just broken.

... but I may have an old version or something

There has only been one release of the object and sending data works for me. If it really is broken then I would appreciate some more details, what version of Windows you're using, an example file. 'Just broken' is not helpful...

[GabSt]

Sorry for bringing this post back up, but,

How do I use Instance Communicator to block another person from running multiple copies of your application?

I don't really understand on how I can do it...

[DJFuego]

The settings are set in the objects properties. Do nothing, Quit, Show running app then quit.

[GabSt]

Cool! I didn't know it was that easy, I thought you had to set up events...

Works, Thanks!