Although there's allot of threads for windows 7, thought I’d start one of for those brave/foolish enough to format their work PC and still try and work with AD and mail servers etc! Hopefully will be a good way to collect together useful links on how to get various snap-ins working. The Full RSAT Tools http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=7d2f6ad7-656b-4313-a005-4e344e43997d#filelist Still on the hunt for non-bodged way of getting Exchange System Manager extensions for Windows 7? Edit: Ended up using the bodged method for installing ESM; http://www.microsoft.com/downloads/details.aspx?familyid=3403d74e-8942-421b-8738-b3664559e46f&displaylang=en#filelist Run the extracted .MSI from cmd line and use the quiet switch /q, which will allow the install to bypass the "this is for vista only" prompt. e.g. c:\ESMVISTA.MSI /q