Replmon Overview
The Replmon utility was introduced with the Windows Server 2000 and Windows Server 2003 Support Tools many years ago as a GUI mechanism for performing certain Active Directory and Domain Controller admin tasks. Unlike AD Sites and Services snap-in (dssites.msc), Replmon exposed more information and had a deeper view into the AD partitioning structure. Replmon gave an administrator the ability to quickly force replication, get basic status reports, and see information about the environmental configuration.
--> The rest is on the blog : http://www.petri.co.il/install-replmon-on-windows-server-2008.htm
