Running 32 bit apps in 64 bit mode

Hi Everyone!
I've just had my old (in relative terms - only 5months old) mac replaced by apple with a shiny new one (loving apple right now!)... which runs natively in 64 bit mode... This is a nice surprise... except for the fact that I can no longer run the cisco vpn client (the inbuilt snow leopard client doesn't work as we have old cisco hardware on the network I'm trying to get to... long story)...
Just wondering if anyone knows how to run individual apps in 32 bit mode? I can't find what I need in the apple discussion forums or in google and I believe running the cisco client in 32 bit mode will solve all my problems...
Thanks! & Much Appreciated

Hi Lauren:
Among other things, I am not a networking "expert." I did look at the Cisco web site and my eyes rolled around in my head. Perhaps there is something there that might help. Frankly, when I was working and had a VPN networking problem, I yelled for my IT people!
Barry

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Problems with installing 32 bit app in 64 bit environment

I have 64 bit ArchLinux installation and I'm trying to install IBM SPSS Statistics v20, but I get an error:
Installer User Interface Mode Not Supported
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cfr wrote:
Did you try specifying the interface mode?
If you don't tell people what you did...
Of course I did. By using "-i Console", i. e., right? Then I tried all of the UIs.

32 bit app on 64 bit WebLogic

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32 bit app on 64 bit OS

Hi,
I'm pretty new to java and this is the first time i'm making a post here. I want to know, if i write a java program in a 32 bit environment will the same code work in a 64 bit Environment too. Does java abstract the architecture too?

I'm pretty new to java and this is the first
first time i'm making a post here. I want to know, if
i write a java program in a 32 bit environment will
the same code work in a 64 bit Environment too. Does
java abstract the architecture too?Only if there's a JVM available for the target environment.
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32-bit apps on x86_64

Hello, im a new to Arch
I have a very newbish question and I guess it has been discussed many times already, but i was not able to find answer, so here i go
I installed the 64-bit Arch linux (x86_64). It seems to run well except for that i have trouble running 32-bit apps.
At first i tried a simple 32-bit app that only uses glibc. It said "no such file or directory" or something similar.
After a bit digging i installed a 32-bit glibc. Fortunately the 32-bit glibc did not produce any file name clashes with the 64-bit glibc.
The whole system continued to work and the simple 32-bit application now worked too.
Then i tried some more complex 32-bit app, which uses other 32-bit libs (lile libX11).
This time it did not say "no such file or directory" but complained about wrong ELF type or something like that.
From that i comclude that now it finds a library with the wanted name, but it is 64-bit instead of 32-bit.
So maybe if i try to install 32-bit variant there will be file name clashes.
Is there a way to run _any_ 32-bit apps on x86_64 Arch linux? Maybe some compatibility package?
If you suggest that i recompile my 32-bit apps to 64-bit, that is not that easy and sometimes it is impossible.
For example i have some binary-only apps that are not open-source. Like, say, the game doom3.

Xyne wrote:What system can run 64-bit and 32-bit apps natively at the same time? If you think another system is doing that for you then it's probably because it hides the 32-bit libs from you.
If no distro can do what i want, then i guess i will have to stick to 32-bit linux for now. I'd hate the thought that half of my CPU stays unused tho
Ranguvar wrote:Arch'll work fine. If you don't want a chroot, then just run the 32-bit app you want, look for its error message, and install that lib32 from the AUR. If there isn't one, make one - it's very simple.
I think the problem with this is that both the 64- and 32-bit variants of some libs use the same name.
Maybe if i put the 32-bits in a different dir (like /lib32 and /usr/lib32) and somehow explain to the 32-bit dynamic loader where to look for them (or patch it)?
It would be best if it was possible to build the libs in a way to permit both 32-bit and 64-bit apps to link with them at the same time. Maybe provide 2 entry points for each exported function - one for 32-bit apps and another for 64-bit.
Last edited by lucho (2009-02-22 15:52:59)

Command-Key etc to start an App in 32-bit mode?

Is there some sort of Command-Key etc to start an App in 32-bit mode, without having to go to "Get Info" ?
I have a Canoscan scanner which only runs in Photoshop under 32-bit mode. It would be nice to be able to launch PS into 32-bit mode when I need to, without going to Get Info.

Hi,
This AppleScript script doesn't change anything in (Get info), but launch the application in 32-bit mode.
property appName : missing value
property tpath : missing value
if appName is missing value then
      tell application "Finder"
            set appName to text 1 thru -5 of (get name of (application file id "com.adobe.Photoshop"))
            (application file id "com.adobe.Photoshop") as text
      end tell
      set tpath to quoted form of (POSIX path of (the result & ":Contents:MacOS:" & appName))
end if
get running of application appName
if the result then
      quit application appName
      tell application "System Events" to repeat while exists process appName
            delay 1
      end repeat
end if
do shell script "arch -i386 " & tpath & " > /dev/null 2>&1 &" -- launch (32-bit mode)
delay 1.5
activate application appName
Quit the application and restart to run in 64-bit mode.
To have a keyboard shortcut to run this script: you have some solutions
First solution: Make a service with Automator.
Second solution: There are some third party utilities that launches script, and you can set a keyboard shortcut.

Need to run macbook pro in 32 bit mode to run and external modem how do i change from 64 bit to 32 bit

I have a macbook pro which i presume runs in a 64 bit mode. living in a country without broadband i need to use a 32 bit modem, can i change the system to run this modem at 32 bit as it wont load at 64?

Reboot holding 3 and 2, see if your modem works.
Rebooting again sets it back to 64 bit.
If 32 bit works then your fine, for now, but eventually your going to have to go 64 bit.

I recently upgraded to Mavericks from Snow Leopard. Does Snow Leopard still exist on my Mac? If so, is it possible to restart under Snow Leopard in order to run PowerPC apps? If not, is there an OS available in 64 bit that supports PowerPC apps? Mav ***.

I recently upgraded to Mavericks from Snow Leopard. Does Snow Leopard still exist on my Mac? If so, is it possible to restart under Snow Leopard in order to run PowerPC apps? If not, is there an OS available in 64 bit that supports PowerPC apps? Mav ***.

The only reason I upgraded to Mavericks was because my Snow Leopard OS was 32 bit, which I was told would support only 4GB of RAM.
That wasn't quite right. You can put in as much RAM as your Mac's hardware supports. The division is in the apps themselves. A 32 bit app can't use more than 4 GB or RAM. A 64 bit app can use much more.
For example, as a 32 bit only version, Photoshop CS3 can't use more 4GB of RAM, no matter how much you actually have installed. CS4 or later can use all the RAM you want to throw at it.

Does ds 52 run as 64 bit app under linux?

does ds 52 run as 64 bit app under linux?
Under 64 bit RH 3 AMD64 V20Z?
Under 64 bit RH 3 on Dell or other x86 64 bit hardware?
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Thanks, Mike

No. 32 bit on Linux.

32-bit Windows 7 app on 64-bit platform oddity

An application compiled for a 32-bit platform runs correctly with an SDK that is compiled for 32-bit only, either in debug or release mode from Visual C++ Express 2008, on a 64-bit computer.
The target platform in the compiler options is set as X86. The compilation is for Win32.
However, when the release version is run outside of Visual C++ - that is, on its own, as an app - the SDK thinks the app is 64-bit, and returns an error of "not supported" (the SDK error message).
The application is mixed unmanaged and managed code, where the bulk of the routines are unmanaged with #pragma unmanaged at the top of the file after includes. The managed code portion is just for a few routines to use the MicroChip software. Thus
the code is compiled with the /clr option.
The application interfaces to a number of other 32-bit DLLs with no problem. The application has been working fine under all of these conditions for some time, and in different installations.
However, the new SDK that was just recently added, appears to be using some information somewhere to think it is running 64-bit, in stand-alone release mode only. It works fine when run under Visual C++ either in debug mode or release
mode.
I have looked all over for any other option that needs to be set to 32 bit for the SDK to know that it is working in a 32-bit app, albeit on a 64-bit platform. (There is no support for the SDK.)
Are there any computer settings that have to be changed?
Thanks for any suggestions. Btw, the problem also occurs on VC ++ 2010 Express.

For assistance with application development you need to go to the MSDN forums found @
https://social.msdn.microsoft.com/Forums/en-US/home
This is an end-user forum and does not address application development.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”

Terminal Commands for Identifying Apps as 32-Bit, 64-Bit, or Both

I posted a prior topic on this matter, but cannot find it. I have seen these what I am asking about, but can't locate them. I am trying to identify the terminal commands noted in my subject.
Message was edited by: donv (The Ghost)
Message was edited by: donv (The Ghost)

This is what I was looking for:
In terminal, type: file /Applications/Safari.app/Contents/MacOS/Safari
What is returned is below. The second/third line identifies Safari as a universal binary with two architectures. The fourth/fifth line identifies the architectures as 32 bit and 64 bit. I am not sure what the sixth/seventh line does unless it identifies Safari as being compatible with PowerPC.
xxxx-MacBook-Pro:~ donv1$ file /Applications/Safari.app/Contents/MacOS/Safari
/Applications/Safari.app/Contents/MacOS/Safari: Mach-O universal binary with 2
architectures
/Applications/Safari.app/Contents/MacOS/Safari (for architecture x86_64):
Mach-O 64-bit executable x86_64
/Applications/Safari.app/Contents/MacOS/Safari (for architecture i386): Mach-O
executable i386
For any wondering. If SL is started in 64-bit kernel mode, then it will run Safari as a 64-bit program. The same will happen if SL is started in 32-bit mode. Leopard also will run Safari as a 64-bit program. Suppose one has a purely 64-bit program. The same things will happen. Note also that some 32-bit programs will run in 64-bit mode, and, at least in some cases, they will run faster in 64-bit mode. On the other hand, some 32-bit programs will not run in 64-bit mode.
Thus, at this time, the benefits from being able to start in 64-bit mode are minimal. That is, one might be able to run some 32-bit programs slightly faster than in 32-bit mode. On the other hand, this minor benefit would, IMO, be offset by not being able to run certain 32-bit or 64-bit programs simultaneously. I'll be sticking with 32-bit mode.
If there currently is more to the story than I have told, then please pile on. I am always interested in avoiding misinformation.
Message was edited by: donv (The Ghost)
Message was edited by: donv (The Ghost)
Message was edited by: donv (The Ghost)
Message was edited by: donv (The Ghost)
Message was edited by: donv (The Ghost)

Install Captivate 4 on Windows 7 64-bit machine with Windows XP mode?

Hi,
I have been searching the web to find out the best way/place in which to load Captivate 4 on my Windows 7 64-bit machine. Seems some people have issues with recording, others don't. I have Windows XP mode on my machine.
My question is... what's the best way to load Captivate 4 on Windows 7 - should I install to Windows 7 and see how it goes. Or should I install under Windows XP mode?
Thank you!
Michele

Yea it works in XP mode
Daniel Wooden
Systems
U.S. District Court Middle District of Tennessee
615-736-7485
From:   RodWard <[email protected]>
To:     DEW45 <[email protected]>
Date:   09/24/2011 12:01 AM
Subject:        Install Captivate 4 on Windows 7 64-bit
machine with Windows XP mode?
Re: Install Captivate 4 on Windows 7 64-bit machine with Windows XP mode?
created by RodWard in Adobe Captivate - View the full discussion
Try running Cp4 in WinXp compatibility mode on Win7. Also make sure
you're set to Run as Administrator.
I run Cp4 on Win7 without issues. But other users report similar problems
to yourself. In the end, it may or may not work for you because Adobe has
never claimed Cp4 was compatible with Vista or Win7 64bit.
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In need of greater clarity on RAM and 64 Bit versus 32 Bit Apps...

i have 13 GB of RAM in my MacPro, and i am running Leopard. i noted, however, that Adobe Photoshop only appears to recognize 3072 mb of RAM (3 Gb) as it is still a 32 bit program. 32 bit programs can still only recognize a max of 3 Gb of memory.
i read somewhere that while Photoshop does not recognize all the RAM, that performance is increased even so, if you have more than 3 Gb of RAM; which would make sense as you can allocate that much to Photoshop and still have left over RAM for your system and other apps.
When i noticed that Photoshop did not recognize all my RAM i was extremely disheartened. After all, i did splurge quite a bit on the RAM in hopes of dramatically increasing performance in Photoshop.
But, as i think about it more, while Photoshop can only see 3 Gb of RAM, having 13 GB means that i can run more RAM intensive programs and each program will have enough RAM available. But i wonder what that means in terms of keeping up with the processors?
i have been in the habit of closing most programs when working in a RAM intensive program such as Photoshop to improve performance. But, i am thinking that i no longer have to really worry about this?
i would appreciate a discussion of this to add some clarity to the 32 bit/64 bit issue and RAM allocation on the MacPro.

Hello Gene.
My understanding is quite the same, 32bit programs theoricaly can't allocate more than 4G of RAM, maybe the 3G that you are talking about are anoter level of limitation, or caused by some allocations mechanisms beyond my knowledge.
When using your computer, take a look at Activity Monitor, and see how much RAM is free. As long as you have enough RAM, there is no need to close applications, since the memory manager will not start swapping on disk. Well, that said, I think it may improbe performance to close application to avoid memory fragmentation, but the impact is not the same.
And you're right, it is useless to have that much RAM for a single processus, but since Mac OS X has a pretty good multitasking, you can run lot of processes, each one allowed to use 4G of RAM, so that you keep performances even with lots of big applications launched.
Now, be patient, and wait for a full 64bit version of Photoshop to really enjoy your RAM
P.S. Maybe some plugins can detach new processes and get their own allocation space for some heavy filter operation ? If someone know, please clarify, that would be interesting.

Possible to run a 32 bit program in 64 bit Windows 7 Pro?

Hi
I've ordered a Thinkpad X220 which here in UK only comes with 64 bit version of windows 7 pro. Problem is that there a couple of programs which i use which only run in 32 bit windows (no 64 bit version available) and they run fine in my existing Win 7 32 bit version...i've tried them on a friend's pc running 64 bit Win 7 Ultimate and they do not work. Is there any way to make these programs work in Win 7 Pro 64 bit on my soon-to-arrive X220? If i downloaded and installed 'Windows XP Mode with Virtual PC" on my X220, would this help in making the 32 bit programs work on my 64 bit Win 7?
Cheers
ThinkPad X220
i7-2620M
Corsair Neutron GTX SSD 480gb
8gb Crucial RAM
IPS 12.5 3x3 display
Intel Ultimate N6300 wifi
9 cell battery
bluetooth
Fingerprint reader
Win 7 Pro 64 bit

Phychopomp1,
Windows 7 64 bit is able to run 32 bit programs. However, some programs will have issues.
Have you checked your programs against the Windows 7 compatibility list: http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=2394
This should tell you if they are compatible or not with Windows 7 64-bit.
There are compatibility settings that you can try once you have installed the software also. Right click on the shortcut and choose properties, then go to the compatibility tab and try the various OS settings.
If those things fail, then you should try Windows XP Mode (convenience link: http://www.microsoft.com/windows/virtual-pc/download.aspx). This will allow you to install your programs in a virtual copy of Windows XP SP3 using Windows Virtual PC. Once XP Mode is installed, when you install your software into it, you will get a shortcut to use the program from your Windows 7 start menu without even seeing the XP Mode window.
Hope this helps,
David
Windows Outreach Team – IT Pro
http://www.microsoft.com/springboard

LabView 2012 32-bit, creating an installer to run on Windows 7 64-bit

Hello I have the full development LabView system installed on a 32-bit PC running Windows XP. I'm trying to create in an installer that will be ran on a 64-bit machine running Windows 7. I'm able to create the installer, but when I try to run the installer I get on the Windows 7 64-bit machine I get:
"The version of this file is not compatible with the version of Windows you’re running. Check your computer’s system information to see whether
you need an x86 (32-bit) or x64(64-bit) version of the program, and then contact the software publisher."
I tried changing the compatibility mode under properties, without any success. What else can be causing this issue. Thanks.

There should be abolutely no problem installing or running a 32 bit LabVIEW executable in windows 64 bit. I do it all the time.
There must be something else. can you give a bit more details about your application? Are you including the runtime engine in the installer?
"I tried changing the compatibility mode under properties, without any success"
What exactly did you do here?
LabVIEW "full" does not allow building applications or installers unless you also have the application builder. I guess you have that.
LabVIEW Champion . Do more with less code and in less time .

Running 32 bit apps in 64 bit mode

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