If you have been working with BizTalk for any length of time and have had to use it with MSMQ you have probably come across the many different flavours of the adapter (or AIC) that have been provided. This has been somewhat confusing and I had found it a little difficult to obtain some of the information about these in the past. If you are interested, Eldar Musayev has written a
great little blog entry all about the history of this along with an overview of what is happening with it going forward. It is a very detailed article and well worth setting aside some time to read.