Microsoft published an important hotfix for .NET 4.5 earlier this year. It wasn’t picked up on by many, therefor a quick write up on the matter.
Since Exchange 2013 is built on top of .NET 4.5, it is recommended to install the hotfix on all Exchange 2013 Mailbox and Multi-Role servers. The hotfix will reduce the memory consumption of the store worker processes.
After installing the hotfix, you need to do one of the following things:
- Set the following registry key:
- Set the COMPLUS_DisableRetStructPinning environment variable to 1
I’d prefer the first option. Note that you need to restart the server for the change to become effective.
Thanks to EighTwOne