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

ID: Q168633

The information in this article applies to:

Microsoft Exchange Macintosh client, versions 4.0, 5.0
Microsoft Exchange Windows 3.x client, versions 4.0, 5.0
Microsoft Exchange Windows 95/98 client, versions 4.0, 5.0
Microsoft Exchange Windows NT client, versions 4.0, 5.0
Microsoft Exchange Server, versions 4.0, 5.0, 5.5

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:

Q151307 Client Access License (CAL)

Additional query words: permission

Keywords : kbusage XGEN exc4 exc5 exc55
Version : WINDOWS:4.0,5.0; winnt:4.0,5.0,5.5
Platform : WINDOWS winnt
Issue type : kbinfo