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Choosing OS for new application


We are onboarding a new application in our environment. The application itself is 32 bit. There is no failover clustering feature.

Am I correct in thinking that the only difference between the Windows 2008 Server Standard and Enterprise is the support for greater memory in the Enterprise version? And, because the app is 32 bit, it can't use more than 4GB so we don't need an Enterprise version?

I've tried to find on the internet, but is there a straightforward chart that lists the differences between Windows 2008 Server Standard, Enterprise, DataCenter and R2?
3 Solutions
If all you need do is run a single app,then standard is fine.
Enterprise supports more vms,more memory,more cpu's.
So it can scale to more users per box.

As for the app being 32 bit,that does not mean that being able to address more  memory is a wasted thing.
Some 32 bit apps can address memory above 4 gb and a 64 bit OS actually can address all 4 gigs(most 32 bit OS can only use about 3.2 gig of memory because of hardware system over head).
Users,print services,ad all use memory and what windows doesn't use,it caches speeding up the server overall.
And you can use ram as a ram drive if need be.
Check this link from Microsoft giving more details about different editions. At the bottom of the page you can also download an editions guide which have more comprehensive information:

andyalderSaggar makers bottom knockerCommented:
Does your 32 bit app support AWE? If so you can give it more than 4GB of RAM to work in.

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