Hi,

I have Exchange 2010 SP2 std with rollup 7 in 2008 R2 server..

When I open MMC for Exchange server and click on 'MailBox' under Organization Configuration, crass error occurred and close the MMC.

Details;

 Problem signature:
  Problem Event Name: CLR20r3
  Problem Signature 01: mmc.exe
  Problem Signature 02: 6.1.7600.16385
  Problem Signature 03: 4a5bc808
  Problem Signature 04: System.Drawing
  Problem Signature 05: 2.0.0.0
  Problem Signature 06: 506c194d
  Problem Signature 07: 154
  Problem Signature 08: d
  Problem Signature 09: AMAG3AACMAWG2XAF344U21ACVE5PSTKL
  OS Version: 6.1.7601.2.1.0.274.10
  Locale ID:

Hello,

Please check net.tcp port sharing service has been enabled or not. If it is disabled this issue would be coming.

Enable the net.tcp port sharingin services

Hi,

Net.TCP port sharing server is already enabled.

Thanks