A DLL might not be registered. Open an elevated command line:
cd %programfiles%\Internet Explorer
Exchange 2010 EMC might fail to close with:
“You must close all dialog boxes before you can close Exchange Management Console”
- MS11-081: Cumulative Security Update for Internet Explorer: October 11, 2011 needs to be installed. This can be obtained from Windows Update. Please note that the packages for client and server OSes might be different, depending on what you need. The installation of this package is REQUIRED for proper operation of the EMC hotfix.
- In order to obtain the actual hotfix that resolves the interoperability problem with EMC, you will need to call Microsoft support and request a hotfix. The hotfix package is currently not available for public download, but can be obtained from support engineers, who can get it from internal hotfix servers. When you talk to support, the hotfix that you need to request is for the KB 2624899. Please note that this article is not publicly available at this time either.
KB direct request: