Microsoft KB Archive/309557

= XCCC: Event 28672 with Error Code 80070057 Occurs During Conferencing Services Startup =

Article ID: 309557

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange 2000 Conferencing Server

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This article was previously published under Q309557



SYMPTOMS
During the Conferencing Services startup procedure, the following event may be logged in the Windows NT Application log:

Event Type: Error

Event Source: MSExchangeCONF

Event Category: (7)

Event ID: 28672

Description: An error occurred while processing the meeting request. Error code: 80070057; Message - The parameter is incorrect.

NOTE: Multiple events may be generated. These events correspond to the number of conferencing resource mailboxes you have configured.



CAUSE
During the Conferencing Services startup procedure, the Conference Management Service logs on to each conferencing resource mailbox so that it can be notified of any conferences that were recently booked. After a conference is successfully booked, the calendar item is moved to the Site Conference Calendar mailbox. However, malformed items may exist in the resource mailbox, for example, a resource that was erroneously invited to a non-Exchange Conferencing Server meeting. These malformed items are considered inappropriate to the Conferencing Services and are flagged as &quot;incorrect.&quot;



RESOLUTION
To resolve this issue, remove the calendar items that exist in your conferencing resource mailboxes.

NOTE: These error messages do not hinder or impede the Conferencing Services.



STATUS
This behavior is by design.



MORE INFORMATION
An online meeting request is initially sent to the conferencing resource mailbox, and then moved to the Site Conference Calendar mailbox after the meeting is successfully booked. No calendar items should remain in these resource mailboxes. Any items that continue to exist in these mailboxes are flagged as &quot;incorrect.&quot;

Keywords: kbprb KB309557

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