You should be able to install Macromedia Director MX 2004 (version 10) as well as Adobe Director 11.5. That's what I have on machine. There should be no conflict between the 2. The only thing on Windows is that DIR file association may be to the new version. But, other than, all should be fine. If you have problems, you can reinstall. There are updates for MX2004 to version 10.1 and 10.1.1.
Thanks for reply but the problem wasnt that the couldnt co-exist. The problem was that when launching MX it took me too the splash screen (where the ad for 11.5 flashed so Adobe has done something that connects when starting the old MX-version. And "something" prohibited every other action as Director immediatly shut down after some seconds.
I found the "solution". During the short period of splash I managed to mark the "dont show this at start anymore" button before the program was shut down. After that Dir MX works just fine. Therefore Im more or less convinced that its some evil Adobe (want to sell more) code involved in this. Anyhow, uninstalled 11.5 trial and run MX, thats good enough for me.
Has anyone had a problem with coexistence of MX 2004 and 11.5 on a Mac (OS 10.5.8)? I'm finally upgrading to 11.5 but have a few projects that need to be finalised in MX 2004. I will also need to go back to MX 2004 occasionally for bug fixes and the like. Just wanted to ensure that this won't be a problem before proceeding with the install.