In article <i2mvie$u5o$>,
says...
>
> >> I don't know why MS could not build a WOW16 emulator of their
> >> own for Win64.
> > I think NTVDM uses virtual 86 mode which isn't available under long mode.
>
> MS should have built their own DosBox then ...
>
> Lynn
AFAIK DosBox is an emulator, i.e. interprets machine languages .
Guest and host machine language can be different,
but it slows down execution many times.
WOWxx and Virtualization SW 9 VirtualPC, VMWare, VirtualBox
are on the other side a kind of SandBoxes.
Guest and Host machine language have to be same
( e.g. both for x86 CPU ),
but code fragments are run natively,
with overhead of supervising .
--
Do you know what is difference
between Windows versions and guided missiles ?
None. Both are fired and forgotten.