When you install the Exchange Server Security Update KB 3087126 on a server running the Exchange Server 2013 management tools only, you might receive an error message when starting the Exchange Management Shell.
The error might look like this:
The error message indicates that WinRM is having issues.This is not the case.
The problem occues due to registry changes performed by the patch setup and due to the way how ConnectFunctions.ps1 (used by RemoteExchange.ps1) determines the Exchange Server to connect to.
The script tries to connect to the local FQDN, if any Exchange role is installed on the local server. This is determined by querying the registry using the following command:
if (@(get-item HKLM:\SOFTWARE\Microsoft\ExchangeServer\v15\*role -erroraction:silentlycontinue).length -gt 0)
The queried registry does not exist prior to installation of KB 3087126.
When having installed the Exchange Server 2013 management tools only, which might be the case on a monitoring or scheduled task server, do the following:
Enjoy the Exchange Management Shell.
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