will software written before 64bit run on 64bit

By dawn_fuss ·
I have cs3 and have to buy a new laptop which I will have to put my software on, I'm going to end up with a laptop running a 64bit opsystem, will cs3 and my other programs run on this laptop? I just can't afford to upgrade all my software too!

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by neilb@uk In reply to will software written bef ...

Most software written for the 32-bit version of Windows will work on the 64-bit version of Windows. There are some exceptions and the one you should watch for first is your antivirus program. Update that, at least.

Old pieces of stuff like printers that only have 32-bit device drivers willl also not workon systems running 64-bit Windows.

Get yourself off to the Windows Compatibility Center just to check your stuff out.


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That's right (plus DEP)

by TobiF In reply to Mostly...

In addition to the correct observations of Neilb, also note that 64bit windows enforce Data Execution Prevention, which is a good thing, but not all 32bit programs comply.

If your 32bit computer supports DEP, then you can try already now, by changing the DEP setting from OPTIN to OPTOUT. (The default setting Optin means that DEP is used mostly for Windows itself. Optout means that DEP is turned on, except for those programs you specify.)
Programs which stop working when DEP is active, won't play under 64bit Windows.

(I already know that my Sudoku program won't migrate, for instance)

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W7 XP mode may help

by oldbaritone In reply to will software written bef ...
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Laughing ... sorry --

by oldbaritone In reply to W7 XP mode may help

Who else is "experienced" (old) enough to remember when the question was

"will my 16-bit applications still run under this new 32-bit environment?"

Just had to chuckle.


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Been there, done that.

by seanferd In reply to Laughing ... sorry --

Especially since there were still lots of 16-bit apps (and OS components!) hanging about for quite a long time.

Yeah, I suppose I may be getting to be one of the Old Ones now. :^0

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RE: will my 16-bit applications still run under this new 32-bit environment

by OH Smeg Moderator In reply to Laughing ... sorry --

Sorry you Youngster but I can remember

Will my 8 Bit Apps run on a new 16 Bit System?

And well as this will not work on a new system we'll put off buying that new fangled 16 Bit Thingy for a while yet. :^0

Actually for that matter I can remember back in the days before PC's constantly explaining to the Programmers what would be required to port the existing applications to the new hardware that was going to be installed.

However I'm not quite old enough to remember needing to tell people that no their existing Punch Cards would not work on the new hardware, that they would have to buy a different type of Punch Card. But then again maybe I've forgotten all that as my memory is failing in my old age. :^0


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by Tony Hopkinson In reply to will software written bef ...

There are a whole load of gotchas.
A lot will run, but might not work exactly right.

Depends on how old the code is, if it's written to be fully compatible with XP, then probably.

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CS3 shouldn't be a problem

by OH Smeg Moderator In reply to will software written bef ...

But you really should check your existing Software with The Windows 7 Upgrade Adviser available free here

Just run it on your existing system and see what software is not supported.

Of course this is assuming that you are looking at a 64 Bit Version of Windows 7 and not one of the better OS's that are available that do not support Code written for M$ Platforms.


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