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Microsoft Open license versus CALs

Posted on 2009-02-10
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Last Modified: 2012-05-06
Hi, I want to buy a license for windows server 2003 enterprise edition and microsoft exchange server 2007 for an organisation of roughly 150 employees to connect to the exchange server to be sending internal and external mails but i am confuse with the microsoft licensing procedure. I have noticed that their is a CAL for client access and for machine access but i dont know which one is right for me and of course i will love to save as much as possible buying license.
Any advise?
Thanks
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Question by:Atouray
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Mestha earned 2000 total points
ID: 23600503
First thing to say is that no one on this site is qualified to answer your question. If you are unsure then you have to speak to Microsoft - get it in writing.

If you are buying Exchange 2007 then you will need as a minimum:

Windows 2003 CALs for the OS.
Exchange 2007 standard CALs
Office licences.

Exchange 2007 also offers Enterprise CALs. These are in addition to the standard CALs and provide additional features and also antispam functionality.

If you already have Windows 2003 servers then you may not need to buy the Windows 2003 CALs as the most common way to license Windows 2003 CALs is per seat, rather than per server.

Any reason you are buying Enterprise edition of Windows? Are you going to use clustering? For 150 users you don't need the additional RAM options, 8gb of RAM on standard edition of Windows 2003 x64 will be fine.

-M
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