Is there any way to force application to run in 32-bit mode on 64-bit Windows ?  My Os is windows 7 64 bit.
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I have an executable that works fine when run on 32-bit windows but breaks when run on 64-bit windows.   Is there some way I can force it to run in 32-bit mode on a 64-bit machine?   I don't have access to the source code.
82228
Currently I'm running Ubuntu 11.10 64 Bit on my laptop and I want to install some Windows programs with Wine (Dreamweaver CS5/Starcraft II etc) but these programs require the 32Bit version of Wine to work even being in a 64Bit environment... I'm a Fedora user most of the time and in that distro installing 32Bit versions of apps inside of a 64Bit system is never a problem, but didn't find a way to do that on Ubuntu.
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I've been using the 64-bit version of Windows 7 since the CTP and have run into a few problems with applications that get installed in the C:\Program Files (x86) folder. What's the purpose of having 2 separate Program Files directories anyway?  Every program I've installed has gone into the C:\Program Files (x86) folder. It doesn't seem to matter if the app is 32 or 64 bit. Why don't 64-bit apps get placed in C:\Program Files?  Is there a way to change the default to be C:\Program Files instead? Would it mess anything up if I just put everything into C:\Program Files?   If indeed there is some benefit to having a separate folder for 64 bit apps, it seems like the more sensible default would have been to use C:\Program Files for x86 apps and create a new C:\Program Files (x64) folder for the new 64-bit apps. This would help maintain backwards compatibility. I work as a software developer and some of my projects contain path references to libraries under C:\Program Files. Now those references are broken on the Windows 7 machine that has placed them in C:\Program Files (x86). I even tried to change the target location in the installer to be C:\Program Files, but that was ignored and the app went into C:\Program Files (x86) anyway.  This is very frustrating because I need to share source code between 32 and 64 bit machines and I don't want to have to mess with some configuration file that sets the path to these libraries differently on different machines.  Edit regarding environment variables: (Using only default English values of variables for simplicity.) On a 64-bit machine %ProgramFiles% will be C:\Program Files while the brand new variable %ProgramFiles(x86)% will be C:\Program Files (x86). So, if you have a 32-bit program that needs to find the folder path that it would be installed under, it would need to check to see if it was running on a 32-bit or a 64-bit version of Windows in order to know which environment variable to use. Any 32-bit apps that were written without this consideration would need to be updated in order to work correctly on a 64-bit machine. So even using environment variables, the backwards compatibility is broken.  Also, %ProgramFiles(x86)% doesn't exist on 32-bit versions of Windows. If it did, then 32-bit apps could just always use that environment variable and wouldn't need any conditional logic based on which OS they're running on.
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Is there an easy way to check if a binary is 32 or 64 bit on Windows? I need to check before I move the program to a 32bit machine and experience a spectacular failure.
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Possible Duplicate:        My Windows 7 is 64-bit, and I thought that means it can use the full 4GB of RAM installed on the computer.  But I just saw this on my computer's properties: (So only 3.25GB is usable??)
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I have a MacBook Pro (5,1) with 4GB of memory running 10A432 - but it's running the 32-bit kernel.  Any ideas why it wouldn't be running in 64-bit mode, and how I can get it to do so?
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Is there a "win64" identifier in Qmake project files?  documentation does not mention other than unix / macx / win32.  So far I've tried using:  win32:message("using win32") win64:message("using win64") amd64:message("using amd64")   The result is always "using win32".  Must I use a separate project-file for x32 and x64 projects, so they would compile against correct libraries? Is there any other way to identify between 32-bit and 64-bit environments?
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How do I install ArcView 3 on 64bit Windows?   There are numerous threads on the Esri forums for how to accomplish this, but the solutions are scattered, inconsistent and disjointed.   This is a request to post integrated and "cleaned-up" solutions, don't just copy and paste. Please indicate if the method is specific to x64 XP, Vista, or 7 (and post seperately, e.g. win7 method in one answer, vista in another).
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I recently upgraded a c# windows service to run as a 64 bit .net process. Normally, this would be trivial, but the system makes use of a 32-bit DLL written in C++. It is not an option to convert this DLL to 64 bit, so I wrapped the DLL in a separate 32 bit .net process and exposed a .net interface via remoting.  This is quite a reliable solution, but I would prefer to run the system as a single process. Is there any way I can load my 32 bit DLL into a 64 bit process and access it directly (perhaps through some sort of thunking layer)?
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I have a 64-bit (amd64 a.k.a. x86_64) Debian or Ubuntu installation. I need to run 32-bit (i386/i686) programs occasionally, or to compile programs for a 32-bit system. How can I do this with a minimum of fuss?  Bonus: what if I want to run or test with an older or newer release of the distribution?
84814
Is it possible to have 64 bit guest OSes run in Virtual PC RC on Windows 7?  I tried to install a Windows 7x64 Ultimate guest in Virtual PC, on a host PC running Windows 7x64, but got the following error:     Attempting to load a 64-bit application, however this CPU is not compatible with 64-bit mode.   From what I have read, there is no workaround for this error using Virtual PC. Does anyone know how to get around this issue?
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I downloaded Blender 64 bit and the OS indicated that the program was not compatible with my computer chip. I then downloaded the 32 bit version which seemed to allow me to install. However the blender Icon in windows when pressed informs me that the program is not a window application. I have an Intel(R) Core (TM)2 Duo CPU E7300 @2.66Ghz if that is important and I am running XP. I am fairly sure I am doing something wrong here- can anyone help please?
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I want use 4GB of RAM.  Can I use in Windows XP 32-bit?  Or should I go for Windows XP - 64-bit? Does it support 4GB of RAM?  Does Windows 7 32-bit support more than 4GB of RAM, or is >4GB support only available in Windows 7 64-bit?
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I've got a third-party application (in this case Cognos Data Manager) installed on 64-bit Windows Server 2003.  Is there a quick way to determine if an application has been built/compiled as a 64-bit application or as a 32-bit application?  By default a program wanted to be installed in Program Files (x86). I'm guessing that means that it is a 32-bit version. I had to get it to talk to an Oracle database and to get that working I eventually reinstalled it in a directory path which didn't have brackets "(" and ")" in it, as that was causing a problem. I've also installed both 64-bit and 32-bit Oracle clients.  For future reference, I'd like to be able to type a command "xxxx fred.exe" and have it tell me whether fred.exe would be needing 32-bit or 64-bit setup (eg ODBC data sources etc).
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I installed 64 bit Ubuntu 14.04 in my home PC and Virtual Box in it. But the real problem is V box only shows 32 bit OSes. I had a same problem in 12.04 also(and i didn't got a solution!). Is there any solution for that? I really need to install 64 bit windows as a VM. I use V Box version 4.3.10.
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How can I launch an application using C#?  Requirements: Must work on  and .  I have seen a sample from DinnerNow.net sampler that only works in Windows&nbsp;Vista.
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I have an .exe file that I am unable to run on Windows 10. I suspect that it is because the binary is 16 bit. Is there a simple way to check? Something like  would be great.