32 OR 64 bit

I need to know is my copy of Windows 2003 R2 trial I downloaded 32 or 64 bit? All i know is 64 bit of Oracle setup.exe file complained:  "This is not meant to be run on this machine"  .Does this mean mine is a 32 bit one?
perfect_tranquilityAsked:
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cuziyqCommented:
Right-click My Computer and hit properties.  Right at the top, it will say:

Microsoft Windows Server 2003 R2
<whatever edition>
Service Pack <whatever>

If it a 64 bit version, it will say so right there.
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ChiefoftheChissCommented:
if you are looking at the file download (i.e. you haven't installed or even burnt the image yet)
just look at the file name you should see a x32 or x64 in there somewhere.
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ryansotoCommented:
Go into the c: drive if you see a folder that says program files (x86) you have a 64 bit OS.
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kaos_theoryCommented:
another way is to look in the c:\windows directory if you see WOW64 you have a 64 bit OS!

 http://en.wikipedia.org/wiki/WOW64
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Windows Server 2003

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