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Microsoft KB Archive/168633

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Knowledge Base


XGEN: When Do Exchange Users Need a Client Access License (CAL)?

Article ID: 168633

Article Last Modified on 10/28/2006



APPLIES TO

  • Microsoft Exchange Client 4.0 for Macintosh
  • Microsoft Exchange Client 5.0 for Macintosh
  • Microsoft Exchange Client 5.5
  • Microsoft Exchange Client 5.0
  • Microsoft Exchange Client 4.0
  • Microsoft Exchange Client 5.0
  • Microsoft Exchange Server 4.0 Standard Edition
  • Microsoft Exchange Server 5.0 Standard Edition
  • Microsoft Exchange Server 5.5 Standard Edition



This article was previously published under Q168633

SUMMARY

Any user who wants to access information on a computer running Microsoft Exchange Server requires a Client Access License (CAL) for Exchange. However, not all users of Microsoft Exchange clients require a Windows NT Server Client Access License (CAL).

MORE INFORMATION

How to determine if you need a Windows NT Server CAL.

If your client uses Windows NT Server for any of these basic networking features, a Windows NT Server CAL is required:

   File Sharing
   Printer Sharing
   Remote Access Services
   Mac Services
                

If your Exchange Client user is not using any of the above networking features of Windows NT Server, a Windows NT Server CAL is not required. If you use Windows NT Server strictly as an application server (that is, just to run Exchange) does not require a Windows NT Server CAL.

For additional information on Windows NT Server Client Access Licenses, please see the following article in the Microsoft Knowledge Base:

151307 Client Access License (CAL)



Additional query words: permission

Keywords: kbinfo kbusage KB168633