that means every time enter a DOS prompt from windows a VM(virtual machine) is created which to a process, is like a 8086, is running with 1 mb of memory and DOS, two VMs are differant and nothing to do with each other. if you execute some command on VM and you quit the dos prompt, its effect probabaly ends.

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windows simulates these machine as far as possible and if it cant, it gives you a famous mesgage box "This program has performed an illeagle operation now it has to be shut down now with a ok and a details option, my advice is dont ever try to press the detail button, it will twist your mind with more complex assembly of i386.


abhishek