On Fri, 14 Aug 2015 09:33:36 -0700, Jim Thompson
wrote:

On Thu, 06 Aug 2015 22:50:06 -0400, Martin Riddle
wrote:

On Thu, 06 Aug 2015 15:09:40 -0700, Jim Thompson
wrote:

On Thu, 06 Aug 2015 15:02:05 -0400, Spehro Pefhany
wrote:

On Thu, 06 Aug 2015 11:28:03 -0700, Jim Thompson
wrote:



I'm getting the general impression that I should avoid 64-bit to make
sure that my legacy programs will still work. Is that correct?

...Jim Thompson
--

No, you should make the jump and adapt (with VMware or some other
method) or dump the really old 16 bit programs. Most 32 bit stuff will
still run. It's time, and it will be the last major change for a very
long time.


--sp

Is there any way to tell what type a specific program is? I haven't
updated my PSpice since 2003 when OrCAD Crapture and Cadence stopped
improving PSpice (simulator) and tried to force everyone onto Crapture
:-(

...Jim Thompson

I think if you open the exe up with a hex editor, and look at x0100,
if you see 'PE', then its a portable exe 32bit app.

Also if you change the compatibility settings under Win7, it will only
list Vista and up if it is 64bit, 32bit apps will show XP 98 95 etc.

Cheers

x0100 has nought but ....
x0110 has PE

So is it portable 32-bit?

...Jim Thompson

I think it is, SWcadIV.exe has PE moved a few bytes too, I'm not all
that familiar with the headers but PE is the Signature for the
portable exe just as the MZ at the begining is the Signature for DOS.

You can always run XP mode, in MS virtual Machine.

Cheers