https://techcommunity.microsoft.com/blog/exchange/introducing-the-microsoft-exchange-user-monitor-exmon-tool/609427
Introducing the Microsoft Exchange User Monitor (Exmon) tool | Microsoft Community Hub
Jul 1, 2019 - EDIT 9/23/2009: We have updated the download link to the Exmon tool which now also works on Exchange 2007 as well as Exchange 2010. I am pleased to announce...
microsoft exchangeintroducingusermonitortool