SQL Server Reporting Services 2008 Custom Assembly Error

Error while loading code module: ‘RS_funcs, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null’. Details: Could not load file or assembly 'RS_funcs, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.

Last fall I was getting this error when trying to get our reporting projects created in VS 2005 to work in VS 2008. I found this post showing where to put your custom assembly in order for the VS designed to work. I post it here so as not to forget again. In VS 2008, the path is "C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies"