From: "Rich Gauszka" 

Don't think so

http://www.windowsitpro.com/Windows/Article/ArticleID/47641/47641.html
The other major problem area is software compatibility. Although most
32-bit Windows software runs on 64-bit systems, legacy applications written
for DOS, 16-bit Windows, or the OS/2 and POSIX compatibility subsystems
don't.

"Gary Britt"  wrote in message
news:455bdc74$1{at}w3.nls.net...
> Can dos apps run on 64 bit windows?
>
> Gary
>
> Robert Comer wrote:
>>> With 7.02 Domino is native on  windoze (remember the good 'ol days?)
>>> so I thought it would be a good time to try the platform.  Just have
>>> to make sure other helper applications will work on it, like defrag,
>>> backup, etc.  My content filtering app is 32-bit so that might prevent
>>> the effort.
>>
>> Sounds like you should be okay.  16-bit software wont work anymore and
>> you'd need an update to a 64-bit defrag, Backup might be a problem, don't
>> know about 64-bit versions.
>>
>>> I see the day coming soon when CAD will drive us to 64-bit.  We're
>>> already starting to bump our heads against the 4GB barrier.
>>
>> Only a matter of time.
>>

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