No namespace Microsoft.AnalysisServices

When I got the complaint that the namespace "Microsoft.AnalysisServices" did not exist when I tried to compile a software project I was a bit at a loss. Google was not very helpful; a lot of posts on the internet keep insisted on adding a reference to a certain DLL file that did not even exist on my machine. The search for an SQL SDK for Visual Studio 2008/MSSQL was fruitless as well. Eventually I solved it by installing the following three items in order:

1. Microsoft SQL Server 2005 Analysis Services 9.0 OLE DB Provider (SQLServer2005_ASOLEDB9_x64.msi)
2. Microsoft SQL Server 2005 Management Objects Collection (SQLServer2005_XMO_x64.msi)
3. Microsoft ADOMD.NET (SQLServer2005_ADOMD_x64.msi)

I suspect the last one did the trick. You can find the files on http://go.microsoft.com/fwlink/?LinkId=54583