How can I load depending .NET dlls into Matlab

Hello, I have two dlls: A.dll and B.dll. I want to use some functions of B.dll so I write:

Basm = NET.addAssembly('C:\work\B.dll');

But B.dll can not be loaded because it has a reference to A.dll. It shows me a ReflectionTypeLoadException with the missing file A.dll How can I solve this problem?

I allready tried the following:

Aasm = NET.addAssembly('C:\work\A.dll');
Basm = NET.addAssembly('C:\work\B.dll');

But it shows the same error for B.dll (A.dll is loaded properly).

Thanks for helping, Sven