Microsoft KB Archive/150051

= XADM: Event Viewer Error: No License Was Available =

Article ID: 150051

Article Last Modified on 2/27/2007

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition
 * Microsoft Exchange 2000 Server Standard Edition

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This article was previously published under Q150051



SYMPTOMS
You might see the following error message in the Windows NT Event Viewer on a computer running Microsoft Exchange Server:

LicenseService, Event ID 201,

Error Description = No License was available for user \ using product MSExchangeIS 4.0.



CAUSE
This error indicates that there are no more available licenses for additional connections to the Microsoft Exchange Server.



RESOLUTION
To correct this, purchase additional licenses and increase the license number. To increase the license number, follow these steps:
 * 1) Start the Windows NT License Manager. Click Start, point to Settings, click Control Panel, and then double-click License Manager.
 * 2) Click on the Products View tab.
 * 3) Click the appropriate Exchange product.
 * 4) Click License, and then click New License, or click the appropriate button.
 * 5) Type the amount of licenses purchased.
 * 6) Click OK, check the box, and then click OK.

After the next reboot, the error message does not appear.

For more information, read Chapter 5 of Update Information for Version 3.51 in the Microsoft Windows NT documentation.

If this does not resolve the problem, please refer to the following Microsoft Knowledge Base article

150387 Only 5 Users Can Connect to Evaluation Copy of NT Server

to verify that Windows NT was not installed from a test platform.



MORE INFORMATION
The Microsoft Exchange Server should still reflect the current number of purchased licenses.

Additional query words: exch2kp2w

Keywords: kberrmsg kbprb kbusage KB150051

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