<A HREF="http://www.ibm.com/developerworks/lotus/library/sametime-healthcheck/index.html?ca=drs-">Learn how to create a port checker application</A> that, when combined with IBM Lotus Sametime, can provide instant notification of outages in your environment. The Lotus Sametime toolkits can be used in powerful ways to create customized applications that harness the power of Lotus Sametime.