After installing security update KB928365 get compile errors

[nventure]

Hello,

Using VS 2005 with SP1, managed C++.

After installing security update for MS.NET framework 2.0 KB928365 my
project fails to compile with error "C2653: 'BLib' : is not a class or
namespace name". Before the security update if the project referenced
A which needed B and C; B and C would be brought in automatically.
After installing kb928365 this no longer happens. If I add references
to B and C manually then the project compiles. I have found that the
more references are added to the project the slower the IDE becomes so
I do not want to have to add all the references manually (project up
to 23 references). Also I have come to a namespace that even if added
manually still fails for some reason. Has anyone come across this
problem? Any suggestions. For now I have removed KB928365 to be able
to compile.

Thank-You for any suggestions,
Nick