The built in VTx support in Intel and AMD chips literally allows for virtual environments to run in and control their own physical 'copy' of the hardware. Hence the reason why you need a copy of Windows to install in the first place. The Windows operating system is literally loaded into a memory space and is "running". Virtualization does not 'fake' the windows environment, for all intents and purposes, when you run Windows (or Linux or OSX) in a virtual environment, like Parallels or Fusion, you are literally running that OS completely, with hardware access etc. Emulators try to 'emulate' the Windows environment, translating Windows system functions into OSX equivalents, for lack of a better word, trying to 'fake' the Windows environment (and I'm not using the word 'fake' here in a negative sense or to put down Crossover, i'm using the word to describe how it works, not pass a value judgement on the product). Why should you care? The highest degree of compatibility will be found with virtualization. Understanding the difference will help you make a better informed choice. People often use the two terms interchangeable and often incorrectly. Parallels, Fusion and Virtual box use virtualization.
Emulation and virtualization are very different concepts and approaches. Worth a read for those interested in these 2 very different methods: It's important to understand these two very different approaches so as to use the application that is best suited for this task. There is a great comment written by a user at MacUpdate named "Mcr" that explains the difference between emulators like Crossover & virtualization apps like Parallels. Things might have improved as this was a number of years ago. In fact because it is a Wine emulator, many apps that were very resource intensive had problems running at all. I didn't mention Crossover because people I know who, I seem to remember, used it in the past & did not have any luck running ManaLink on it.
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