http://msmvps.com/blogs/carlosq/archive/2008/03/28/devenv-exe-safemode-and-add-ins-in-visual-studio-2005-2008.aspxJust a curious difference in behavior between Visual Studio 2005 and Visual Studio 2008 that the MSDN documentation doesn&#39;t cover very well: According to the MSDN documentation of VS 2005 , &quot;This switch prevents all third-party VSPackages fromenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/carlosq/archive/2008/03/28/devenv-exe-safemode-and-add-ins-in-visual-studio-2005-2008.aspx#1695951Sat, 20 Jun 2009 23:01:08 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1695951Andrew<p>Ahh... That would explain why I still get add-in errors when trying to start with /SafeMode! &nbsp;;)</p> <p>But... is there ANY way to disable the add-ins, then...?</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1695951" width="1" height="1">http://msmvps.com/blogs/carlosq/archive/2008/03/28/devenv-exe-safemode-and-add-ins-in-visual-studio-2005-2008.aspx#1639938Wed, 09 Jul 2008 08:48:39 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1639938Mohamed Meligy<p>Not all add-ins get disabled though. An example is Resharper (and I think PowerCommands, but not sure).</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1639938" width="1" height="1">