I just installed Visual Studio 2008 on a laptop running Windows XP Service Pack 2.  I get the following error whenever I try to launch Visual Studio:

"Problem loading BIDS Helper: Unable to load one or more of the requested types.  Retrieve the LoaderExceptions property for more information.

at System.Reflection.Module._GetTypesInternal(StackCrawlMark&stackMark)

at System.Reflection.Assembly.GetTypes()

at BidsHelper.Connect.Extensibility.IDTExtensibility2.OnConnection(Object application, ext_ConnectMode, Object addInInst(array & Custom)

I haven't the slightest idea what any of that means.  I wish Microsoft would start writing error messages for the people who USE their software rather than the people who built it.

Found a solution in another thread at CodePlex.  VS 2008 was loading BIDS Helper 2008, which is looking for an installation of SQL Server 2008, which I do not have yet.  I'm still on SQL Server 2005.  Relinking the add-in to the 2005 version solved the problem.

Sure would have been nice if the error message had simply told me that.