Plex86 Bochs Something like

[Killerpenguins]

     I was wondering if anyone has tried either of these?  What I was
wanting it for was a cpu (either a old system of mine or maybe a Walmart
Via box) that all I was wanting to do is run IE (needed due to idiots
who programed the web interface for auto parts ordering) and the Windows
free OBD II code reader.  The OBD II reader is just a backup since the
portable ones are prefered.
     What would happen if it was an old copy of Windows, the semi
computer  literate person would be screwing it up and almost assuredly
get a virus.   
I was hoping to use Linux to limit access and to run Windows in a
protected mode so when it is screwed up they just restart it.

Thanks