C# In Memory Assembly to DLL File

Question

I am trying to save an Assembly to a file using System.Reflection.Emit.AssemblyBuilder but it's not working.

I've got a variable to hold an assembly that is running perfect when I load and run it.

System.Reflection.Assembly dll = GetAssembly(resource);

Is there anyone who can help me to save this "dll" into a file like "name.dll"?

Answer 1

Your AssemblyBuilderAccess flags must be RunAndSave or Save for it to work.

Answer 2

In the comments, you've said that the private GetAssembly method fetches data from a resource file and builds an assembly from it. Assuming the "bytes" it's getting from the resource file really are just the bytes of the assembly, the simplest way of getting a file is to get those same bytes from the resource file, and call File.WriteAllBytes. You don't need to go via an Assembly object, and doing so makes the job harder.