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Error Message: The Exchange Conferencing Service May Not Have a Default Conferencing Mailbox Defined for It
Article ID: 329318 - View products that this article applies to.
This article was previously published under Q329318
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/256986/EN-US/ )Description of the Microsoft Windows Registry
When you try to schedule a conference by using Web Scheduler, you may receive the following error message:
The following event ID message may be logged periodically in the Application event log on the Exchange 2000 Conferencing server:
The Exchange Conferencing Service may not have a default conferencing mailbox defined for it.
Please try the following:
Contact your system administrator.
Sending the message Error #80010105: Unable to schedule the specified conference.
Microsoft Exchange 2000 Conferencing Server
Event Type: Error Event
This problem may occur after you apply the Q299687 Windows 2000 security hotfix or the Q311401 Windows 2000 security rollup package on the global catalog server.
For additional information about this hotfix and security package, click the following article numbers to view the articles in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/299687/EN-US/ )Function Exposed by Using LDAP over SSL Could Enable Passwords to Be Changed
(http://support.microsoft.com/kb/311401/EN-US/ )Windows 2000 Security Rollup Package 1 (SR311401), January 2002
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
To resolve this problem, follow these steps on the global catalog server.
NOTE: Make the following registry change only if the global catalog servers have not been upgraded to Windows 2000 SP3.
For additional information about this procedure, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/309622 /EN-US/ )XADM: Clients Cannot Browse the Global Address List After You Apply the Q299687 Windows 2000 Security Hotfix
Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Conferencing Server.