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The article presents a discussion on peer-to-peer (P2P) applications. It also cites the challenges to P2P application development which included the need to develop proprietary protocols for message exchange wherein locating and connecting with instances of an application that are hidden behind a Network Address Translation (NAT) is needed. It also cites the solutions for these barriers such as the introduction of the Windows Vista and its accompanying .NET Framework 3.0 release, and the PeerChannel in Windows Communication Foundation (WCF).

Several letters to the editor in response to previously published articles including "Rock Stars" by Jack Ganssle, "A Polymorphic Approach to Intertask Message Handling" by Kevin Duffy, published in March 2006, "Volatile as a Promise" by Dan Saks published in January 2006, "Taming the Hydra" by Jim Turley, published in April 2006, and "Middleware Madness" by Jack Ganssle are presented.

Introduces Wingra Technologies LLC's Missive 4.0, a messaging software that features a Java management console. Retail price; Benefits of the Java features to users; Capabilities.

Evaluates networkMCI BUSINESS, a messaging software system from MCI's networkMCI division. How networkMCI offers smaller companies a way to outsource messaging service and support; Hardware required; How the software can handle most business communication needs, including fax, document sharing, e-mail and video conferencing; Licensed applications; E-mailMCI; Exchanging files; Pros and cons.