How to release partial DLL in .NET

I am used to deliver DLLs that built on top of several static libraries(.lib) in the unmanaged environment. Now I need to do similar thing but most lower level libraries are already managed DLLs. For security reasons, I don't want include every functions in these 开发者_运维技巧managed libraries. Any suggestions?

Not much you can do here. Your choices are:

1. Obfuscate the lower level libraries. You still ship all functions, but they are harder to decompile.
2. Refactor the libaries into different assemblies, so you can ship them more granularly.