Certain Office Communications Server 2007 R2 services do not start on a computer that has more than 16 CPU cores

Applies to: Microsoft Office Communications Server 2007 R2

Symptoms

When you install Microsoft Office Communications Server 2007 R2 front-end server on a computer that has more than 16 CPU cores, you find that the following services do not start:
  • A/V Conferencing service
  • Application Sharing service
  • Conferencing Announcement service
  • Conferencing Attendant service
  • Monitoring Agent service
  • Outside Voice Control service
  • Response Group service
Additionally, you may find an event log that resembles the following on the front-end server:

 

Resolution

To fix this problem, install the following cumulative update:

2400399 Description of the cumulative update for Office Communications Server 2007 R2, Unified Communications Managed API 2.0 Core Redist 64-bit: September 2010

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.