C:\Program Files (x86)\Microsoft SDKs\Windows\<version>\Bin\ECMangen.exe
C:\Program Files (x86)\Microsoft SDKs\Windows\<version>\Bin\x64\ECMangen.exe
C:\Program Files\Microsoft\Exchange Server\<version>\Bin\ECMangen.exe
C:\Program Files\Microsoft\Exchange Server\Bin\ECMangen.exe
C:\Program Files\Microsoft\Exchange Server\ClientAccess\Bin\ECMangen.exe
C:\ExchangeServer\Bin\ECMangen.exe