OK, this is in response to the people who have posted on this subject. Someone was kind enough to give me the exact details, but I shall protect my sources except to say they know the insides of MS tools well. The warning here is that this is unsupported and could completely destroy your users profiles...
[updated on 28th July] Hi, I've pinged this around a bit internally and the answer I got back is that this is not supported and will not work. I have not tried it myself, but don't expect it to work. If you need this sort of functionality you need to look at MS-CRM I am afraid. History: You need...