Is there any way to run PowerPC applications on Mountain Lion (Not installing-just opening from a CD) I have old software (will run from a CD) in both a Mac OSX (10.5.8) and Mac OS9 version which I would like to run on Mt Lion, MacBook Pro 2012. A very similar question has been asked and answered here, my question differs in that the software is on a CD and is run from the CD, local installation is not required. Does this change the answers that can be found at link below, addressing installation of the old software on the same machine running Mt Lion. Thanks for any feed back.

See Is there a way to install and use PowerPC applications on Intel Macs?
Quick answer: No.
Long answer: Yes, you can. You can run Snow Leopard in a VM (virtual machine) on your computer.

There are paid solutions like Parallels Desktop and VMWare, but a great free solution is VirtualBox. There is a fabulous guide on how to install Mac OS X Snow Leopard here

Note: You will need a version of Mac OS X Snow Leopard to install on the Virtual Machine. If you don't own it, Apple is still selling it here.