These days, I was looking to collect some information for configuring multiple instances of EP on a single server. e.g. running DEV and TEST EP on the same box as many clients dont have the bandwidth or budget for having 2 separate servers for both. Here's a great piece of information from Mey MeenakshiSundaram about running multiple instances of EP on the same server. Thanks Mey for the great post. It's written for Dynamics AX 4.0 but I believe this should work for Dynamics AX 2009 as well.