What do all the last 5 commenter's all work for M$? And Wayne just because you jump every time M$ tells you to doesn't mean everyone else wants to. I have seen no compelling features in E2K7 that make me want to upgrade yet. As far as MAPI incompatibility goes I have been using E2K3 admin tools on XP for a long time now and I have run into some MAPI problems, but nothing that big. But I also didn't have to jump through a bunch of hoops to get E2K3 and Outlook installed on my computer either. I not a Vista basher either. I use it on my laptop and have found some substantial features in it that I do like, but I need these Exchange tools and I don't think that is unreasonable to expect to be able to use them on Vista and have Outlook working. Shouldn't M$ want users that have such a huge influence on business decisions on what OS to use be able to use Vista to do their jobs?