Well, you're getting into the details of how the operating system works. It's best to try and look up the facts about this kind of thing rather than make guesses and reasonable assumptions (as computers are not always reasonable ;)
Try http://en.wikipedia.org/wiki/WoW64 and http://msdn.microsoft.com/en-us/library/aa384249(VS.85).aspx for starters. A cursory read of that tends to suggest that the WoW subsystem provides a (collective?) virtual 32-bit memory space for the applications running on it... This is a pretty sophisticated functionality to provide memory management. One might expect that one of its features is not "applications will crash regularly if there isn't at least 8GB available", as this would be a serious bug. Your mileage may vary. Regards, David Davis Technical Author From: Shmuel Wolfson [mailto:shmue...@gmail.com] Sent: 14 August 2013 08:18 To: Fred Ridder Cc: Davis, David; framers@lists.frameusers.com Subject: Re: Windows 7 + FrameMaker 11 = BOOM! 4 GB of RAM may be of no use to FrameMaker if it's the only application open, but if you have other applications open and you only have 4 GB, wouldn't those other application be competing for the same 4 GB? In which case, if you have 8 GB you are better off. Regards, Shmuel Wolfson Technical Writer 052-763-7133 On 13-Aug-13 5:26 PM, Fred Ridder wrote: You seem to have missed my point completely. The purpose of my posting was to refute the categorical statement made by another poster that "More than 4 GB of RAM is of absolutely no use for running a 32-bit application, whether it be on a 32-bit or 64-bit operating system." Of course it is true that one of the most basic functions of an OS is memory management. I said nothing that disagrees with that. -Fred Ridder > From: david.da...@invensys.com<mailto:david.da...@invensys.com> > To: framers@lists.frameusers.com<mailto:framers@lists.frameusers.com> > Date: Mon, 12 Aug 2013 04:29:32 -0500 > Subject: RE: Windows 7 + FrameMaker 11 = BOOM! > > Fred, one of the most basic functions of an operating system is to be able to > manage memory (without crashing!) :) > Simply because applications might all want more memory on the go at one time > than is physically available, should not mean that anything crashes! It gets > paged in and out. Windows 7, indeed, has more robust sandboxing of memory > usage between apps than Windows XP. > The idea that "you gotta have 8GB of RAM otherwise Frame will crash" is a bit > sweeping! > David > > > Message: 3 > Date: Fri, 9 Aug 2013 14:37:29 -0400 > From: Fred Ridder <docu...@hotmail.com><mailto:docu...@hotmail.com> > To: Helen Borrie <hele...@iinet.net.au><mailto:hele...@iinet.net.au>, > "framers@lists.frameusers.com"<mailto:framers@lists.frameusers.com> > <framers@lists.frameusers.com><mailto:framers@lists.frameusers.com> > Subject: RE: Windows 7 + FrameMaker 11 = BOOM! > Message-ID: > <bay171-w98706b7f8ec1559036865cba...@phx.gbl><mailto:bay171-w98706b7f8ec1559036865cba...@phx.gbl> > Content-Type: text/plain; charset="iso-8859-1" > > But the application is not the only thing using memory. Even if a 32-bit > application can only address 4 GB, any additional installed memory can still > be used by the OS and by other processes if a 64-bit OS is being used. Having > more than 4 GB means that a 32-bit application will have a lot less > contention for memory resources even if it can only access 1/2 or 1/3 of the > total memory available to the OS. > > -Fred Ridder > > > Date: Sat, 10 Aug 2013 06:23:55 +1200 > > To: framers@lists.frameusers.com<mailto:framers@lists.frameusers.com> > > From: hele...@iinet.net.au<mailto:hele...@iinet.net.au> > > Subject: RE: Windows 7 + FrameMaker 11 = BOOM! > > > > At 01:32 a.m. 10/08/2013, Rick Quatro wrote: > > > > > >Otherwise, make sure the writers have plenty of RAM. In my opinion, 8 GB > > >is the minimum. This may help with the performance problems. > > > > > > > More than 4 GB of RAM is of absolutely no use for running a 32-bit > > application, whether it be on a 32-bit or 64-bit operating system. > > > > Helen > > > > > *** Confidentiality Notice: This e-mail, including any associated or attached > files, is intended solely for the individual or entity to which it is > addressed. 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