The Win7 XP Mode is Virtual PC with a bundled copy of XP (you could
obtain Virtual PC and then install a copy of XP under it and you would
have essentially the same thing, but that would "blow" a valuable ($100
to $300) XP product key; XP mode essentially gives you the copy of XP free).

XP mode will not work under Windows 7 Home premium; it requires Business
or Ultimate.

XP mode also requires a CPU with [I want to say "Intel"; but some AMD
CPUs have it also] "virtualization technology"; amazingly, some Intel
CPUs have this and some don't, and no one ever paid any attention to it
until now, so now it's a real "surprise" when it's missing, since it is
a feature whose implementation was so "hit or miss" that in some cases
more expensive CPUs lack it and less expensive CPUs have it. I have a
Core 2 Duo laptop that does not have it.

AJL wrote:
> "BillW50" <BillW50@aol.kom> wrote:
>
>> I don't remember any DOS v1.0
>
> DOS is a generic term. There were many variations of DOS. MS-DOS, PC
> DOS, DR-DOS, FreeDOS, PTS-DOS, ROM-DOS, JM-OS, and several others.
> There was a V1.0 for MS-DOS which is probably what the author intended
> to say.
>
>> Now I see Windows 7 has a XP compatibility mode.
>> Which will just cause XP to live out a much longer lifespan
>> of any OS before or after it. <grin>
>
> Naw, DOS will still be king. You will just have to run a DOS window in
> your XP window... 8-O