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My new computer used Windows 7. I have some old compiled BASIC programs and other .exe progrms that will not run under Windows. What shall I do?

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Is it Windows 7 Professional? You could use virtual pc.

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If they are old DOS programs your best bet would by running them in DosBox, an MS-DOS emulator.

Other than that you could use a virtual machine. Windows 7 Professional or Ultimate can download XP Mode which is a Windows XP virtual machine. Otherwise there is VMWare or Virtual Box, but both of those would require a separate copy of Windows loaded on them.

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If you're running a 64-bit version of Windows then you will need a system emulator to run DOS applications since Long Mode does not support running Virtual 8086 Mode processes.

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