# RTMFP between two different SWFs?

**URL:** <https://forum.kirupa.com/t/rtmfp-between-two-different-swfs/320959>\
**Category:** flash\
**Created:** [April 6, 2011, 6:53pm UTC](https://forum.kirupa.com/t/rtmfp-between-two-different-swfs/320959 "2011-04-06T18:53:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Raconteur](https://avatars.discourse-cdn.com/v4/letter/r/839c29/32.png) [@Raconteur](https://forum.kirupa.com/u/Raconteur)\
**Post date:** [April 6, 2011, 6:53pm UTC](https://forum.kirupa.com/t/rtmfp-between-two-different-swfs/320959/1 "2011-04-06T18:53:16Z")

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Hi gang,

I cannot find this anywhere, but is it possible to use RTMFP between two different SWFs?

What I’d like to do is press a button on SWF-A and have a message appear on SWF-B. The two SWFs are completely different apps.

I get that this is trivial if you are using a single SWF, let’s say hosted on a web-page, but I need to do this with two stand-alone SWFs.

If it is possible, what is the magic to hook them together? I was assuming it was to use the same GroupSpecifier and MulticastAddress, but that doesn’t seem to be working.

Thanks for any input!

Chris