Sunday 14 April 2019

macos - Install two different versions of same application on OSX?

A friend of mine is running OSX, and wants to install two versions of World of Warcraft onto the same machine: one being the current official retail version, the second being a much older ("Vanilla") copy to play on private servers with.


They already have the retail (new) version installed on the computer; when they run the installer program to install the older version, it detects the already installed (new) version, preventing the old version from installing (get a "Play" button instead of "Install".)


The root of the problem is the installer detecting an already existing version of the application: how can we 'trick' the installer application so it does not believe the other version of the same application already exists?



  • We've tried renaming the Application's folder to something else (so it shouldn't have been able to check a default file path); it still detected it.

  • I understand OSX is UNIX based and that it doesn't contain a registry like Windows, but is there any type of information that is stored in the OS (other than the Application folder itself) that could allow this installer to detect the presence of the application?

  • (We don't care about running the two installations simultaneously, only that we have both versions installed so one or the other can be played.)


I understand this is a very application-specific problem, but any tips or insight into OSX and "installed applications" would be most helpful. Thanks!

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