Question

Hey guys (and gals) I’m having a problem using Assembly GetExportedTypes() in .NET 4.0. The same code is working perfectly in a project targeted at an older .NET version.

NOTE: *The code works for local assemblies but when trying to open them off a network drive it does not work, that is my problem… It looks to be loading the assembly, but it claims it can’t find it when using GetExportedTypes(). Again if I open a dll off my machine it works, this error only occurs with dlls located on network drives *

EDIT: The error is thrown on GetExportedTypes

The Code:

        Assembly assembly;
        Type[] t;

        assembly = Assembly.LoadFrom(dllPathOpenFileDialog.FileName.ToString());

        t = assembly.GetExportedTypes();

The Error:
Could not load file or assembly ‘*..***.***.****, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null’ or one of its dependencies. The system cannot find the file specified.

(I used asterisks to hide personal information – the file name)

Answer 1

The way certain security policies are handled was changed in .NET 4.0. This article should provide some background.