LoadFrom and UnsafeLoadFrom fail when loading a winmd file

Asked Dec 29 '13 at 22:45

Active Dec 29 '13 at 22:51

Viewed 599 times

I am trying to load a .winmd file using Reflection in a C# 4.5 app (i'd like to read the metadata stored in it).

When using Assembly.LoadFrom and Assembly.UnsafeLoadFrom, the assembly loading fails with an exception:

Additional information: Could not load file or assembly 'file:///xxxxx.winmd' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)

When using Assembly.ReflectionOnlyLoadFrom it succeeds.

What is the explanation for this behavior? and what is the proper way of loading a .winmd component to read its metadata?

edited Dec 29 '13 at 22:51

asked Dec 29 '13 at 22:45

lysergic-acid

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It is not a real .NET assembly. Since it only contains metadata, using ReflectionOnlyLoadFrom is the logical choice. – Hans Passant Dec 29 '13 at 23:06
@HansPassant But how do you call the methods then? – LOST Apr 25 '20 at 22:45

LoadFrom and UnsafeLoadFrom fail when loading a winmd file

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