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Regarding Client Access License (CAL)

Use of Microsoft CALs

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  • Joined 22-November 13
  • OS:Windows 7 x86
  • Country: Country Flag


I want to know details about Client Access License or CAL,

My current system infrastructure as like => 4 Servers . #1 is DC, #2 is MAIL Server (IBM Lotus Domino)  #3 is used for run some application and share Files and Folders and run SQL 2005 also, #4 used for run other application.

All servers are running with windows server 2003 r2 and last 3 servers are member of DC. Now I want to replace all of servers and upgrade all server OS to Windows Server 2008 R2 Standard . I've almost 300 user of my network and all are the member of DC.

So in this case , How many CAL I need to purchases with each windows and why ?

Can anyone please clarify about CAL in my situation.   Thanks. !


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