The Good News

The good news with Exchange 2007 is that the uninstall process is flawless. Being the dork that I am, I went through and removed all directories (well, moved the directories first, then whacked 'em later) and registry entries and such post-uninstall, but that's really not necessary. You do have to remove the edb and log files manually before reinstalling, but other than that, it's smooth like buttah.