About 64 & 32 bit

hey there, how do I know that my Intel-based iMac is using 32 or 64 OSX?

Go to the Apple Menu in top left hand corner and choose About This Mac. Under Processor it lists which processor you have whether it be a Core Duo or Core 2 Duo or G4 or G5. G4 processors and earlier are 32bit. G5 processors are 64bit. And then like Kappy said Core 2 Duo or the Xeon processors in the Mac Pros are 64bit.
George

Similar Messages

How about a 64 bits firefox

all about why there is not a transparent and unequivocal explanation answer by Mozilla about a Firefox 64 bits browser by Mozilla it self?!!!

I agree with JaineyCakes. We install Firefox on all our clients' machines. We're not used to getting smart aleck answers from our vendors. (Or at least not the vendors we keep).
You asked for a reason why you should developing a 64 bit version for Windows. Well here are our reasons:
- We have multiple machines with 12 GB or more of RAM
- We and our clients have been running 64 bit Windows since 2009 (at least 5 years).
- Almost all our other applications that we depend on in our business are 64 bit (and have been for years).
- Increasingly, our clients are running more applications concurrently, including more and more tabbed sessions within Firefox. Also the complexity of the apps they run within the browser continue to grow in complexity.
- Our clients' tolerance for slow performance continues to go down every year.
Not sure if any of this matters to Mozilla. But we used to consider Mozilla to be a technology leader. Not sure if you still do.

Help about converting songs (bit rate)

Hi,just before begining I want to say that I did a search about the topic and found many things so what I am looking for is different opinions.
I read that if I convert songs from one compress format to another, the songs will lose some quality no mather what's the compressed format and bit rate. Is that true? Like if I go from Mp3 to acc?
Another thing that I want to be sure of is that AAC at 160kbps is audio cd quality. Is that true?
Well thanks in advance

Hi Maxime
First: yes if you convert a .mp3 file to .acc it will lose some quality, because both formats are compressing the original data by using a alogrithm. Compressing an already compressed file = Data loss = Loss of quality. The todays compressing methods are really great and the loss won't be much, I guess. But you have to try out and listen to it to decide if it's still ok for you.
The term "cd quality" is (miss)used on every second website. The thing is, songs on a CD are in a noncompressed format (like .wav) so it's not possible to get a .mp3 file, that reachs exactly the same quality. But an mp3 of 192kbps you get nice results and it should be ok for most of the users. ACC should be a bit smaller by the same quality level, but I don't use it. If you want real CD quality, you have to buy it or burn it without any compression.
Thats not the ultimative truth but only my opinion.
cheers
P

Any clue about a 64 bit iMac ?

Hi,
I'm thinking -as well- about buying a new iMac. A friend who has been an iMac user since.... well... no clue, long ago, meant that end of the year the "new" iMacs 64 bit will come out.
hmm... unfortunately, all based on speculations, i suppose.
(http://www.macintouch.com/readerreports/macsonintel/topic3804.html)
I know it is almost stupid to talk about this subject when the new iMacs Intel Duo just came out. But i do need to buy a new PC around the end of the year and was wondering if anybody has heard about this ?
Anyways i suppose Mr. Jobs has something up his sleeves to draw the attention of all the millions of ppl looking to buy a new system after the new Windows Vista comes out around end of the year, right ?!
Well, i know maybe this topic doesn't fit here, but i couldn't find another place where to put it.
Cheers, cj.

Okay bottom line is Apple wont be shipping 64-Bit computers until they can reconfigure it because that would totally go against Apples move to intel...remember the "performance per watt" by Steve Jobs? Well 64-Bit will totally go against what apple believes because 64-Bit Chips will take more power and it will heat up more than the regular 32-bit chips unless Apple and Intel figures out a solution to minimize the power consumption.
Maybe we'll see a 64-Bit PowerMac that will run intel in the near future but I don't think any other mac line will go 64-Bit.
As far as I know there the PowerMac G5 Quad that is 64-Bit powered but it's the IBM processors are still not fast enough to really push the 64-Bit to its core. Apple could have just used the Intel EM64T instead of their core duo but intel still has a lot to work on with their 64-Bit Chips. Imagine the iMac or any mac product running Intel EM64T, it would be a disaster. Right now the new core duo iMac aren't up to part and even intel admitted that their EM64T chips still needs tweaking.
So we probably wont see any mac with 64-Bit chip any time soon..give apple and intel maybe 2-3 years before the next move since apple has just started the core duo transition and they're not even fully intel-ized yet so it's going to be a long wait if your waiting for 64-bit mac.
The core duo are pretty fast but you have to understand, all the problems the consumers are experiencing isn't gonna be the whole time since it's apples softwares and such it's not necessarily the hardwares..if thats the case apple will have the patches and updates hopefully to solve these issues. As soon as the transition is complete, meaning all the mac apps out there are universal, then you start to see the performance apple has promised.
I suggest waiting for the PowerMac line because it's the "PRO" of all the pro products apple offers so you can wait for that to go intel as well and thats my best bet if I were you, it would deliver such power you need for pretty much anything and maybe even better than the 64bit powered pc's out there since at this moment 64-Bit hasn't been perfected. As AMD and Intel stated, and even apple... "It's the future of computing" they didn't say "the future is now" so basically what I think they meant by "It's the future of computing" is that they are still working on it.
20" iMac Core Duo 2GHz 2GB, PowerbookG4, PowermacG5 Quad Mac OS X (10.4.5)

FYI about wrapping 32-bit integers

This is a note for newbies, however, I have a question that came up writing this post that I'd appreciate any experts addressing. Please see the bottom of the post, "Code" Question.
I am not talking about wrapping a class around a primitive. I am talking about the low level issue of what happens internally to a 32-bit integer value as the bits wrap around either limit of the data type.
This is a FYI for noobs like me! Consider the following code:long bigValue = 53*52*51*50*49*48;
System.out.println(bigValue);Looks ok to us noobs, right? But the output this produces is -650,483,584 (I added the commas). When I did this I was puzzled for a bit, then I remembered that when you add to a value an amount that exceeds the upper limit of that type (subtract past the lower limit) the value can wrap. For example, a Java byte - an 8-bit type - has a range of -128 to 127. If I have a variable of type byte equal to 127 and add 1 to it, the result is -128! The bits inside wrapped around.
In my code sample, what is salient is that in Java an integer literal is always assumed to be an int - a 32-bit integer - which has a range of:-
-2,147,483,648 to 2,147,483,647. The resulting multiplication I was doing equals 16,529,000,000 which is out of range for an int, so it wrapped and gave me the negative value.
It didn't matter that bigValue was of type long. Java was looking first at the operations which contains integer literals; therefore it internally used an int to perform the multiplication, which caused the bit-wrapping. Fortunately, you can force Java to use a long value all the way through this computation by forcing the first literal to represent a long (a 64-bit value). Example:
long bigValue = 53L*52*51*50*49*48;
System.out.println(bigValue);
Notice the capital "L" after "53". That forced Java to read "53" as a long, and thereafter it continued to perform the multiplication steps on a long instead of an int, finally yielding the correct value to assign to bigValue.
...Just thought other newbies would appreciate the heads-up.
"Code" Question
When trying to write the second code snippet, the part "53L" would look like "53" in the preview. I could not figure out how to "escape" the "L" so it would show up. Anyone know how to do that?

kajbj and vanilla_lorax...
Thanks for the explanation and "fix".
Have y'all had trouble with the B,
I,
U, and code buttons? Every time I
click on them I get an "Error on page" in the leftof
my browser's status bar....Try clearing your browser's cached files. It might
help.Nope, didn't help.

I upgraded to Lightroom 5 about 2yrs ago,bit now my system is asking me to renew my membership to activate the develop module in Lightroom5. The upgrade was already paid for though.

I upgraded to lightroom5 about 2yrs ago, but now my system prompts me to renew my membership to activate my develop module as the develop module has been de-activated

If it asks for an activation to activate the develop, it must be a CC version installed. If you use a CC version you have to pay you for your selected plan like monthly or annually.
If you should have the stand-alone version because you don't have/want a CC plan, then you probably have installed the wrong version - the CC instead of the stand-alone.
Download the stand-alone version from here: Win, Mac

Need help about byte-to-bit

I wanna convert a byte to 8-bits and store them in a bit array. any API method I could use or how to write it by myself?
8bits-to-byte method is needed as well
Thanks!
Message was edited by:
xixiao

There's java.util.BitSet.

I'm a bit confused about this 32 bit and 64 bit stuff

Martin Evening's book says "If your computer hardware is 64 bit enabled and you are running a 64 bit operating system, you can run Lightroom as a 64 bit program."
Well I'm currently running XP 64 Bit with 4 GB of RAM inside. How do I run Lightroom in 64 bit mode?
He says Windows 7 users and Windows Vista users will want to buy the 64 bit version of Lightroom. I don't see any 64 bit versions of Lightroom. And for those of us on XP?

Road Worn wrote:
I bought the disc. I explored the disc and I did find the Setup32 and Setup64 on there so I will assume the installer installed the correct version for me.
You can check in task manager, whether LR is running in 32 or 64-bit mode for you. AFAIK, the 32 bit processes should be marked *32 in WinXP also.
What version of LR are you running? Since you installed from CD, you might have LR3.0 installed. In this case I would strongly suggest you download Version 3.4 from here and install it. There have been many bug fixes from 3.0 to 3.4.
Beat

A question about ordering 32-bit Test drive DVDs on SAP Knowledge Shop

Dear all,
I ordered the following DVDs on the SAP Knowledge Shop website:
- SAP NW2004s Testdrive Linux DB2 PPC
- SAP NW2004s Testdrive MaxDB
And it seems that the first one works with 32-bit linux.
Because, this is the first time that I order something on this site, there is something that I didn't fully understand. Apparently
the DVDs are free. However there will be a shipping cost, which for me will be 15 Euros (I'm living in France). But when I completed the order form with my name, address, email, etc. there was no field for credit card number (for the shipping payment). I just received an order number and that's all. So finally how should I pay for the articles shipping?
Thanks in advance,
Dariyoosh

try a power manager reset.
read this apple doc:
http://support.apple.com/kb/HT3964

Question about XP 64 bit

I have used iphones since day 1 of the first release. I am coming to the end of my 2 year agreement with At&t and was very excited to get the next iphone, however I recently installed xp 64 bit and have now come to find out that itunes doesnt work on it. I really dont want to upgrade my os right now. So what other solutions are there?

iTunes does not support 64 bit XP.
If you want to use it you have to do some hacking, here is link:
http://skunkwerks.wordpress.com/2008/04/13/getting-itunes-to-work-with-windows-x p-x64/
I have no idea if it works, you can find others with google.

When i try to download itunes i recive a error message about 32 bit or 64 bit, and the download is extracted.

can somebody help? when i try to download itunes i recive a message about a 64 bit or 32 bit and then the download goes in reverse.

Go to Start and right click on Computer, choose properties, this will help you determine whether your system is 32 bit or 64 bit.

How to Install Coldfusion 8 64-bit on Small Business Server 2008 64-bit

How to Install Coldfusion 8 64-bit on Small Business Server 2008 64-bit
I ran Coldfusion 8 on SBS 2003 Premium for 6 months with no problems. When we finally decided to cut over to SBS 2008, that’s when everything went to hell. I tried for weeks to get Coldfusion 8 to install properly on the new SBS 2008 64-bit box. During the course which, I found bits and pieces of information for Vista 64-bit and Windows Server 2008 64-bit installations. There are some distinct differences, however, with SBS 2008 since it runs core Web applications like OWA, RWW and Companyweb. After countless unsuccessful attempts, one of which completed corrupted the box, I found the solution.
I have attempted in this white paper to detail the steps to assist others who may be in a similar situation. I don’t make any warranty for the information, but so long as you follow the steps carefully you should be fine. BTW, for those of you who say Adobe offers free technical support for licensed users, that’s not entirely true. Like I said, I purchased CF8 and originally installed it on an SBS 2003 Premium box. After we cut over to SBS 2008 and encountered problems, Adobe wouldn’t provide any technical support without charging. Moreover, based on my initial conversations with Adobe’s technical team, no one seemed to know much about running 64-bit on SBS.
From my understanding, only two versions of Coldfusion 8 can be installed in 64-bit: Enterprise and Developer. The “normal” install (which I paid a grand for) can only be deployed in 32-bit mode – gee, THANKS Adobe! By the way, in Developer mode only two distinct IPs can access the site in addition to the localhost. Any additional IPs will result in a CFML error message stating that the maximum number of IPs have been exceeded. At any rate, take your time and follow the steps to achieve a successful installation.
PRE-INSTALLATION TASKS
Back Up SBS
It’s always a good practice to backup your server before deploying any kind of major system changes. Although this step is optional, I recommend it in case you need to restore your server for any reason. Bear in mind, if your system ever gets totally corrupted, you cannot restore back from the twice daily incremental backup images alone. You will need a full backup with system recovery information to restore. Here are the basic steps:
Click: Start > Programs > Administrative Tools. Right-click “Windows Server Backup” and choose “Run as administrator”.
Click “Backup Once” under Actions in the right-hand pane.
Choose the “Different Options” radio button under Backup Options.
Choose the “Custom” radio button. What we’re primarily interested in here is backing up the OS – not your data partitions or attached drives.
Select the “SYSTEM (C)” checkbox, uncheck any others. Also, ensure that the “Enable system recovery” checkbox is selected before continuing on.
Under ‘Specify Destination Type’, I usually select the “Local drives” radio button and point it to a Terrabyte USB drive I use for backups. You can point this to a tape drive, or select the “Remote shared folder” radio button if you map to a UNC path to store your backup images. Just remember, make sure that whatever path you select can readily be accessed in the event of an emergency. Also, make sure the “Verify after writing (recommended)” checkbox is selected.
Under ‘Specified Advanced Option’, I usually select the “VSS full backup” radio button instead of the default since I don’t use a 3rd party backup product. If like me you rely solely on SBS for your backups, choose the full backup option.
Confirm everything and click “Backup”. This process may take several hours depending on the size of your system.
Verify ISAPI Filters:
In IIS Manager, double-click the server instance in the left-hand pane.
In the center pane under IIS, double click the “Modules” icon to verify that the ISAPI native modules are already installed for IIS. If it’s set up correctly you should see two entries:
IsapiFilterModule %windir%\System32\inetsrv\filter.dll
IsapiModule %windir%\System32\inetsrv\isapi.dll
If either of these modules are missing, you will need to re-install these (google for a solution).
Set Up Development Environment
Create a directory for your CFML files outside of the default Windows location (e.g., default is usually C:\inetpub\wwwroot\). For the purpose of our install, I created a directory on a separate disk called: D:\DEV.
Copy and paste your CFML files and directories into the new DEV root Web directory. This will eventually be the directory where the Coldfusion installer places the CFIDE and CFDOCS folders.
Open IIS Manager and double-click the server instance in the left hand pane. Expand the “Sites” folder. Right-click the Sites folder and select “Add Web Site”.
Enter a name in the “Site Name” box (e.g., “test-site”). You will notice that the system will automatically create a corresponding Application Pool with the same name. NOTE: this is important to prevent conflicts between the DefaultAppPool (needed for SBS Web apps like OWA, RWW, etc.) and the application pool needed for Coldfusion to function properly in SBS 2008.
Point the “Physical Path” to the directory you created in step #1 above (e.g., “D:\DEV”).
Don’t worry about testing the connection. If you click “Test Settings” you may receive a warning that IIS cannot verify access to path (D:\DEV). Don’t worry about this for the time being.
Under “Host name”, enter a DNS path to your site (e.g., “dev.test-site.com”). Click “OK”.
Configure Application Pools for Installation
In IIS Manager, double-click the server instance in the left-hand pane. Click on “Application Pools” to display the list of server application pools in the center pane.
In the “Actions” pane on the right-hand side, click “Set Application Pool Defaults”.
Change “Enable 32-Bit Applications” - the second item from the top – from “False” to “True”, and then click “OK”. NOTE: if you skip this step, Coldfusion will not properly create the required mappings during the install. We will change this setting back after the installation completes – more on this later.
Modify the application.host.config File for 64-Bitness
Click: Start > Programs > Accessories. Right-click “Notepad” and choose “Run as administrator”.
Open the config file from within Notepad – default location: C:\Windows\System32\inetsrv\config\applicationHost.config
Do a search and change this one line from:
<add name="PasswordExpiryModule" image="C:\Windows\system32\RpcProxy\RpcProxy.dll" />
To this:
<add name="PasswordExpiryModule" image="C:\Windows\system32\RpcProxy\RpcProxy.dll" preCondition="bitness64" />
Restart the IIS Admin service.
Set HTTP Compression
According to some threads I read, the http compression module can cause errors if you don’t disable it globally. To remedy this, perform the following:
Click: Start > Programs > Accessories. Right-click “Command Prompt” and choose “Run as administrator”.
At the command prompt, change directory to intetsrv by typing: cd inetsrv
Run the following command:
C:\Windows\system32\inetsrv>appcmd.exe set config -section:system.webServer/httpCompression /-[name='xpress']
This will turn off HTTP compression for all sites in IIS.
In IIS Manager, double-click the server instance in the left-hand pane. Double-click the “Compression” icon in the IIS section of the center pane.
Uncheck all of the boxes, then click the “Apply” button under Actions in the right-hand pane.
Recheck all of the boxes, then click the “Apply” button under Actions in the right-hand pane.
Restart the IIS Admin service. This should enable compression and coldfusion to work at the same time.
NOTE: if for some reason you need to reverse this, run the following command from the command prompt:
C:\Windows\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+[name='xpress',doStaticCompression='false',dll='%windir%\system32\inetsrv\suscomp.dll']
INSTALLATION TASKS
Download the 64-bit installation package from Adobe – filename: coldfusion-801-wind64.exe.
Right-click the file and select “Run as administrator”.
Accept the terms of the License Agreement.
If you have an Enterprise license, enter it. For our purposes, just click the “Developer Edition” checkbox.
Select “Server configuration” – the default radio button.
I deselected all subcomponents and can’t guarantee that you’ll arrive at the same results if you select additional items like “.NET Integrated Services”. It should be fine, particularly if you install documentation. My preference was to keep the install as plain vanilla as possible.
Select the directory path for Coldfusion to install into – default is :C\Coldfusion
THE NEXT TWO STEPS ARE CRITICAL TO YOUR SUCCESS. Unselect “All IIS Websites” and select the “Configure specific IIS Website or another web server” radio button. Click “Add”, and then select your test Web site (e.g., “test-site”) under “IIS Web Site”. Hit “OK”.
Do NOT use the default directory path for the CF Administrator location (e.g., default path: “C:\inetpub\wwwroot”). Instead, point the installer to your new DEV root Web directory (e.g., “D:\DEV”). The bottom line, you want the installer to place the CFIDE directory and files within this folder, alongside your other CFML files and folders.
Enter an Administrator password.
Choose to Enable RDS, or not. I enable this by preference but it is not required. This allows you to make updates to files using a CFML editor directly vs. having to move/FTP the files over if you’re working remotely. Opponents to this argue that it’s potentially less secure, but for a lower environment I don’t see this as a major concern.
Confirm everything to kick off the install.
If all goes well you should see a message at the end stating that the install was successful. I recommend you uncheck the box that asks you to open the CF Administrator in the default Web browser after the install. NOTE: we will open it a different way during the post-installation tasks. The worst thing that will happen if you forget to uncheck the box is that you might receive an error that the command prompt hung – not a big deal – just close it and move on to the next (final) steps.
POST-INSTALLATION TASKS
Verify CF Installation:
The installation will create a new folder in your program group: Start > Programs > Adobe > Coldfusion 8. The default “Administrator” link will not work because it points to the wrong path: http://127.0.0.1/CFIDE/administrator/index.cfm. The “127.0.0.1” or “localhost” path as you may recall in IIS, points by default to the “C:\inetpub\wwwroot” directory. Our CFIDE files, however, are located within: D:\DEV.
To bring up the CF Administrator logon page, open up a Web browser and replace the “http://127.0.0.1” part of the path with the DNS path name to your CF environment (e.g., http://dev.test-site.com/CFIDE/administrator/index.cfm).
This should bring up the Coldfusion Administrator Login screen. Enter in the Administrator password you created during the install to log in and configure your application server.
Verify that your test-site renders correctly by typing in your test URL into a Web browser (e.g., http://dev.test-site.com).
Fix Application Pool Defaults to Re-enable SBS Web Applications:
At this point, Coldfusion Administrator and your test CMFL Web site should be working properly. The problem is, default SBS Web applications like OWA, RWW and Companyweb will throw errors and fail to start. Fortunately, this is easily remedied by performing the following steps:
In IIS Manager, double-click the server instance in the left-hand pane. Click on “Application Pools” to display the list of server application pools in the center pane.
In the “Actions” pane on the right-hand side, click “Set Application Pool Defaults”.
Change “Enable 32-Bit Applications” - the second item from the top – from “True” to “False” this time. This should re-enable the SBS applications, which would otherwise result in 500 errors (e.g., OWA, RWW, Companyweb, etc.). There is no need to restart IIS.
Open a Web browser and test that you can once again connect to OWA, RWW and Companyweb successfully.
In IIS click to highlight the application pool for your new site (e.g., “test-site”). In the right-hand pane, click “Advanced Settings”. Ensure that “Enable 32-Bit Applications” – second item from the top – is set to “True” for this application pool specifically.
Lastly, jump up and down for joy! Hopefully now, everything is working. Best of luck!! ..Paul D (MCP).

First, it would be a good idea for you to specify what distro of Linux you're using, as not all are supported by Adobe.
Second, this is probably your problem right here:
http://askubuntu.com/questions/40416/why-is-lib-libc-so-6-missing
In a nutshell, CF expects the 32-bit version of libc.so.6 to be in /lib, but it's probably not. You might be able to modify the installer to point to the correct location for that file, or you might be able to create a symlink to the file - but as the above link describes, creating a symlink might have negative consequences.
As for installing CF 8 64-bit, that's only available with Enterprise, not Standard. If you want CF Standard 64-bit, you need to upgrade to CF 9.
Dave Watts, CTO, Fig Leaf Software

Office Standard 2013 Key Management Service host 32-bit or 64-bit version ?

Hello,
I have a 2012 DomainController serving as our KMS host.
I need to activate 2013 Lync 32-bit clients so I will have to install the office 2013 KMS host.
The KMS host download is available in both 32-bit and 64-bit.
Should I download the 64-bit version because the 2012 OS is 64 bit or will I download the 32-bit host since the Office version we use is 32-bit?
BR
Sverre Amundsen

Hi,
Based on my understanding, I suppose that you want to activate 32-bit version of Lync 2013. Is it right?
If so, you can only install 32-bit version of Office 2013 on your PC. The 32-bit and 64-bit versions of Microsoft Office programs don’t get along, so you can only have one type installed at a time. If you mix 32-bit and 64-bit version installed
on the same PC, you might see some errors.
Reference about why can’t I install both the 32-bit and 64-bit versions of Office 2013:
http://office.microsoft.com/en-001/access-help/why-cant-i-install-both-the-32-bit-and-64-bit-versions-of-office-2013-HA103523746.aspx
By the way, there is an article about choosing 32-bit or 64-bit version of Office.
http://office.microsoft.com/en-001/support/choose-the-32-bit-or-64-bit-version-of-office-HA102840825.aspx
Best regards,
Greta Ge
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.

Vista 64 bit and CS4 and color management

This is a question about Vista 64 bit and CS4 and color management. I scan 4x5 film and sometimes end up with up to or even bigger than 1 GB files. Obviously that needs as much memory as possible. Windows XP is limited in this regard and I am in the market for a new speedy computer which won't force me to stay at a snail's pace. In this month's Shutterbug, David Brooks in his Q&A column says to avoid Vista for color management reasons, but offers no explanation or support for his opinion. He implies one should wait for Windows 7 for some unstated reason. With a calibrated monitor and printer and Photoshop controlling color files sent to the printer, why would Vista be any different or worse than XP? Is he on to something or just pontificating? Does anyone know any reliable info about Windows 7 that would make it worth waiting for?
Thanks.

Zeno Bokor wrote:
Photoshop has direct access to max 3.2gb
On Mac OS X, PS CS4 can use up to 8 GB of RAM, but only directly accesses up to 3.5 GB. (Figures quoted from kb404440.) In using PS CS4 on Mac OS, though, direct Memory Usage maxes out at 3 GB even. If you set usage to 100% (3 GB), then plug-ins (including Camera Raw and filters), as well as actions and scripts, can access RAM above that 3 GB to between about 512 MB and about 768 MB total (seems to vary depending on which filters et al that you are using), leaving the rest up to 4 GB for the Mac OS. If you have more than 4 GB, then the amount of RAM above 4 GB is used by PS as a scratch disk. This increases performance significantly for most things because writing to and reading from the hard drive is much slower than doing so with RAM.
I haven't done the testing for actual RAM usage and such for PS CS4 on Vista 64, and Adobe's documentation is very much lacking in detail, but, based on the statement "If you use files large enough to need more than 4 GB of RAM, and you have enough RAM, all the processing you perform on your large images can be done in RAM, instead of swapping out to the hard disk." from kb404439, it seems that PS would be using RAM in very much the same way as I described above for Mac OS, except that the scratch disk usage in RAM wouldn't be limited to 8 GB (instead to how much you have installed). Has anyone done any performance/load testing to know for sure? I didn't see any such studies published, but I am curious if one has been done.
I will agree that there is a definite performance advantage when using PS CS4 (64-bit) on Vista 64, which I've experienced, especially when working very large compositions.
My initial recommendation to the OP to use Mac was based upon reading those articles about bad color management. As I stated before, I have never experienced that problem, and clearly the views of all that have posted here so far indicate that the problem may not be a real issue. (Perhaps this David Brooks fellow and Steve Upton both like to mess with their computers and broke something in Windows?)

Windows 8 32-bit driver update

Recently, I've use BootCamp for 2 years. Might be I should explain from beginning but sorry for the long explaination. I used OS X Snow Leopard 10.6.8. on 2011 then I started to use Windows using BootCamp. So I installed Windows XP. After several months, I stopped using Windows XP because I found out that Windows 7 64-bit have better system to run games. But Apple shows that MacBook Mid 2010 with 2GB RAM can't support 64-bit version. So I update it to OS X Mountain Lion on 2012 for upcoming years to become secondary. I didn't bother about the 64-bit version can't run on my Mac. So I proceed the installation, before I installed Windows 7 64bit, I installed Windows 7 32bit and it run perfectly but some quite usually when running PC games like Assassin Creed Brotherhood = the flag on top of Castel Sant'angelo don't wave and when run Autorun there so sound (some installation of apps/games) + decrease of visual performance even though installed the latest update driver. So I just installed 64bit version. After the installation, I installed the driver updates and everything including PC games and latest DirectX. It works 100000% perfectly than 32bit version like more features, more interaction in games, more realistic graphics and stunning graphics visual. Later then on late 2013, I purchased a legit copy of Windows 8 Pro 32bit. I install Windows 8 Pro but there seems a problem during installation. It says my Mac can't support Windows 8 and it seems my Mac still read its OS X as half Snow Leopard and half Mountain Lion even though BootCamp 5. Then I reformat my Mac into OS X Mountain Lion and after that I can proceed the Windows 8 installation. After installation, I tried to install the driver updates but cannot. I began to search for the latest update. I found that only Windows 8 64bit version only support but my Mac works fine on Windows 8 Pro 32-bit. No problem but no sounds and brightness to too high which hurts my eye. Run PC games 1000000000% perfectly and better graphics visual on Assassin Creed 3, Dead Island, The Elder Scrolls V Skyrim, Modern Warfare 2(all settings is highest), Modern Warfare 3(800x600 resolution) and Assassin Creed Brotherhood(all settings is highest). I didnt download the update. I leave it. Please make an update driver for Windows 8 Pro 32bit on MacBook Mid 2010. It just works fine, no problem just the update drivers for sounds and the brightness.

I'm sorry but this was very difficult to read. If I understand you are having an issue installing Windows 8 32-bit. Is this right?
If so this is not supported as per http://support.apple.com/kb/HT5628. Specifically: "If you need to use a 32-bit version, you need to use Boot Camp 4 Support Software, and you must use Windows 7. 32-bit versions of Windows 8 are not supported via Boot Camp."

About 64 & 32 bit

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