Exmon is crashing while clicking refresh

Hi Readers,

We have installed exmon (Microsoft Exchange Server User Monitor) on exchange 2010 servers but on all servers when we click refresh button on exmon, it crashes.

http://www.microsoft.com/en-us/download/details.aspx?id=11461

All steps have been followed as mentioned in the below article

http://www.msexchange.org/articles-tutorials/exchange-server-2003/tools/Microsoft-Exchange-Server-User-Monitor.html

Issue we found was : The folder (consisting exmon) was getting scanned by antivirus, so we just renamed the folder to the name that matches the name that we have in antivirus exclusions

Regards

Sukhija Vikas