2008 Not Backward Compatible?

Discussion in 'Windows 64 Bit' started by AndreZ, Jan 21, 2008.

  1. AndreZ

    AndreZ Guest


    I'm pretty new to the 64bit world, ok so new I've never installed it yet.
    My original understanding is that 2008 would have compatabilty support for
    32bit programs. But what i've been reading here It does not seem that way.
    Can someone please point me in the direction that has some clarity?

    I'm considering going to a 64bit TS application server with 2008, and for
    the most part all of our programs should work fine. However there are a few
    small programs of which I'm uncertain. They are not complex programs, pretty
    much accounting or Record of employment programs.. but I'm worried they
    won't work....

    Any tips/direction will be appreciated.

    AndreZ, Jan 21, 2008
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  2. Perhaps there is some confusion on the meaning of compatibility.
    32bit-software will run fine on a 64bit OS. However, as with any 64-bit
    Windows, 64-bit drivers are required so if the software relies on a driver
    it has to be a 64-bit driver. If any element of a program is 16-bit, such
    as the installer, that will not work on any 64-bit system. But there is not
    a general compatibility problem such as you might find between, say, Windows
    and Linux.

    I recommend you start with
    Colin Barnhorst, Jan 21, 2008
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  3. The rules for compatibility haven't changed from Windows Server 2003 to
    Windows Server 2008, in general. Most 32-bit applications should work fine.
    The exceptions are those 32-bit applications that require a system level
    driver and don't have a signed, 64-bit driver available. And those 32-bit
    applications that have a 16-bit installer. There is NO support for 16-bit
    applications in any 64-bit MS operating system.

    for some useful background on 64-bit from a Server perspective.
    Charlie Russel - MVP, Jan 21, 2008
  4. It is worth nothing that there is usually a different triage bar for
    appcompat problems between the Server and non-Server versions of Windows, so
    some software might not work on Windows Server 2008 x64 but will work on
    Windows Vista x64 for example. In general though, the codebases are all very
    similiar these days.
    Chuck Walbourn [MSFT], Jan 22, 2008
  5. That's a good point, and is true of hardware as well. I've got several old
    Intel NICs that simply will NOT work in Server 2k3 x64. Work fine in XP x64,
    which is the same code base. Too bad, they're all dual port Server grade
    NICs, if only 10/100.
    Charlie Russel - MVP, Jan 22, 2008
  6. AndreZ

    AndreZ Guest

    Thank you

    Colin, Charlie and Chuck, you've all been very helpful! :)
    AndreZ, Jan 22, 2008
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