I am doing some research on this but I was wondering if anyone has any personal experience with this feature new to Exchange 2010. We are currently running Exchange 2007 and considering upgrading to 2010. One compelling reason is the need for an e-discovery feature for legal. We are looking at products in excess of 100K $. I read that Exchange 2010 has a discovery feature and archiving etc.... I don't expect it to be as good as the third party products but it may suffice. Does anyone have experience with this feature? Our clients are all running Office 2007 and I don't think we will be upgrading to Office 2010 anytime soon and I have read that you lose functionality with this feature if you are not using Office 2010, but, are there backend features we can take advantage of to satisfy our legal department?