How to Run both Snow Leopard and Mountain Lion?

Discussion in 'macOS' started by parbar, Sep 5, 2013.

  1. parbar macrumors newbie

    Oct 18, 2011
    I want to be able to run Snow Leopard and Mountain Lion simultaneously.
    I have a MacPro running Snow Leopard with 2 internal hard drives. It also has Parallels on it to run Windows.
    I have old programs I wrote and others wrote that won't run on Mountain Lion.
    What's the best way to run Snow Leopard and Mountain Lion at the same time? there another way to run the older programs in Mountain Lion?
  2. MichaelLAX macrumors 6502a

    Oct 31, 2011

    Attached Files:

  3. benwiggy macrumors 68020

    Jun 15, 2012
    Can't you recompile it in Xcode for ML?

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