AVMCUSvc.exe crashes when more than one network adapter is installed in Lync Server 2010 A/V Conferencing Server Content provided by Microsoft Applies to: Lync Server 2010 Enterprise Edition Select Product Version All Products Symptoms AVMCUSvc.exe crashes when many network adapters are installed in Microsoft Lync Server 2010 A/V Conferencing Server.NotesAVMCUSvc.exe is the process name of the Audio Video Multipoint Conferencing Unit service.A/V Conferencing Server means Audio/Video Conferencing Server. Resolution To resolve this issue, install the February 2015 Cumulative Updatefor Microsoft Lync Server 2010 Unified Communications Managed API 3.0 Runtime. More Information This issue occurs because a deleted object is referenced. Last Updated: Feb 6, 2015 In this article Symptoms Resolution More Information Symptoms Resolution More Information Did this solve your problem? Yes No Tell us what we can do to improve the article Submit Thanks! Your feedback will help us improve the support experience.