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Event ID: 201 Source: LicenseService

No license was available for user <domain\username> using product <product name>.
This will effect OWA users on SBS. stores all the licenses in C:\Windows\system32. The backup file is in the system32 folder. Rename to licstr.old. Then rename to
This issue may occur if the Windows Small Business Server license store has been reset to the default value of five CALs. See ME888818 for information on solving this problem using multiple methods.

See ME176811 for additional information about this event.
Veritas Support Document ID: 241675 provides information on this event.
For product "SMBServer 5.2" change the License Mode of Windows from Per server to Per device.
ME153140 has information on how to reset License Manager information. ME187629 describes Terminal Server licensing.

This behavior can occur if the server is configured for Per Server licensing mode, but you added additional licenses as per-seat licenses. See ME257590 for more information.
According to Microsoft: "This problem occurs because the concurrent limit set in the registry for FilePrint is wrong. It needs to match the number of licenses Microsoft BackOffice Small Business Server has installed.". See the links below for more details.
ME277933, ME298160, ME311770, ME305138 and ME192712 describe other instances when this error can occur on SBS. As per ME150051 and ME294940, this can also appear on Exchange 2000 servers. ME264908 shows this as being recorded for IIS 5.0
In ME236922, this error is described as occuring after the installation of a fix for SNA Server.
See ME321447.

For product "MSExchangeIS": Veritas TechNote ID: 241675: "Backup Exec 8.6 Small Business Server does not release connections / sessions to the Exchange Server, and subsequent client connections are not permitted due to the Client Access Licenses (CAL) being depleted. NOTE: A supported fix is now available from Microsoft, but it is only intended to correct the problem described. Please refer to the Microsoft Article ID: ME305138 for instructions on obtaining the Hotfix for this issue."

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