topic Re: how do I know if a Windows program is 32-bit? in Windows Server 2003

how do I know if a Windows program is 32-bit?

Jenny C — Thu, 24 Mar 2005 12:34:17 GMT

Hi, on a Windows 2003 64-bit operating system, how do I find out if a Windows program is 32-bit or 64-bit? Thanks in advance!

Re: how do I know if a Windows program is 32-bit?

Pat — Thu, 24 Mar 2005 16:59:52 GMT

Hello, Jenny,

Differences between 32-bit and 64-bit Windows
The major differentiator between 32-bit and 64-bit Windows is in memory support. Currently, 32-bit Windows is capable of supporting up to 4 GB of system memory, with up to 2 GB of dedicated memory per process. Windows XP 64-Bit Edition will currently support up to 16 GB of RAM, with the potential to support up to 16 TB of virtual memory as hardware capabilities and memory sizes grow.

Customers will find some feature differences, but overall, 64-bit Windows includes a majority of the features that are included in 32-bit Windows.

http://www.microsoft.com/technet/prodtechnol/winxppro/evaluate/xp64ovw.mspx

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/still/hh/still/WIA_tree_60dec3ad-c926-4a31-bc65-60d5fda6b6bf.xml.asp

Pat

Re: how do I know if a Windows program is 32-bit?

Thomas Kraushofer — Fri, 25 Mar 2005 01:15:54 GMT

Good Answer, but how do I know if a program was compiled using a 32 or a 64-bit Compiler? When I have only the executable?

Re: how do I know if a Windows program is 32-bit?

Norman_21 — Fri, 25 Mar 2005 02:55:47 GMT

Very good question!

I'll look at the software box?

Or I'll check the application version and get online to find out more details!

If someone is aware of a tool, please post it...

Thanks

Re: how do I know if a Windows program is 32-bit?

Pat — Fri, 25 Mar 2005 11:01:35 GMT

I believe in System Information, you'll see the directory listed. If 32 Bit, it will say C:\Windows\System 32. If 64 Bit, it will say C:\Windows System 64.

Pat

Re: how do I know if a Windows program is 32-bit?

Pat — Fri, 25 Mar 2005 11:20:54 GMT

This may help.

http://msdn.microsoft.com/msdnmag/issues/1100/hood/

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/kmarch/hh/kmarch/64bitAMD_cccad92b-bd53-468f-9aa9-739e3cba5d20.xml.asp

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/win64/win64/general_porting_guidelines.asp

Pat

Re: how do I know if a Windows program is 32-bit?

Norman_21 — Fri, 25 Mar 2005 23:53:43 GMT

Jenny,

Are you refering to the OS or to the Applications installed in the OS?

I believe that you are refering to the second one, right?