XADM: Event Viewer Error: No License Was Available (150051)
The information in this article applies to:
- Microsoft Exchange Server 4.0
- Microsoft Exchange Server 5.0
- Microsoft Exchange Server 5.5
- Microsoft Exchange 2000 Server
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 <domain>\<account>
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:
- Start the Windows NT License Manager. Click Start, point to Settings, click Control Panel, and then double-click License Manager.
- Click on the Products View tab.
- Click the appropriate Exchange product.
- Click License, and then click New License, or click the appropriate button.
- Type the amount of licenses purchased.
- 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.
| Modification Type: | Minor | Last Reviewed: | 4/28/2005 |
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| Keywords: | kberrmsg kbprb kbusage KB150051 |
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