混合程序集不会从 ILMerge ed 结果加载

Question

I have a simple program that references The open-source AlphaVSS library . It contains 3 dlls:

• AlphaFS.dll (IL)
• AlphaVSS.Common.dll (IL)
• AlphaVSS.x64.dll (Mixed)

Now I want to merge my main.exe with AlphaFS.dll and AlphaVSS.Common.dll , leave only AlphaVSS.x64.dll on the disk.

So I added an AssemblyResolve event to load AlphaVSS.x64.dll from system32:

AppDomain.CurrentDomain.AssemblyResolve += (sender, args2) =>
{
   Console.WriteLine("Loading " + args2.Name);

   string name = args2.Name.Split(',')[0];
   string path = "c:\\windows\\system32\\" + name + ".dll";

   if (args2.Name.StartsWith("AlphaVSS"))
   {
       if (File.Exists(path))
       {
           return Assembly.LoadFrom(path);
       }
   }

   return null;
};

And I merged the rest successfully:

%ILMerge% /v4 /ndebug /out:"$(TargetDir)all-in-one.exe" "$(TargetDir)$(TargetFileName)" "$(TargetDir)AlphaVSS.Common.dll" "$(TargetDir)AlphaFS.dll"

Then I copied only all-in-one.exe and AlphaVSS.x64.dll to another computer, and launched all-in-one.exe. The first DLL to load is AlphaVSS.x64.dll and it's loaded. Then it tried to load AlphaVSS.Common.dll and it's not found.

From ILSpy, The AlphaVSS.Common.dll is already merged into the all-in-one.exe and loaded. But the mixed assembly AlphaVSS.x64.dll is still referencing AlphaVSS.Common.dll , so it tried to load it again.

Does anyone know how to resolve this?

Answer 1

Based on your answers in comments, when you load AlphaVSS.x64.dll from the drive, it tries to load AlphaVSS.Common.dll (since it references it).

But you already catching it with your custom resolver. And since AlphaVSS.Common.dll contains AlphaVSS this condition will be true if (args2.Name.StartsWith("AlphaVSS")) and your resolver'll try to load AlphaVSS.Common.dll from the drive.

What you need to do is modify your resolver to load only AlphaVSS.x64.dll from the drive and load AlphaVSS.Common.dll from contents of current assembly.

In case of AlphaVSS.Common.dll try doing something like this:

Assembly assembly = AppDomain.CurrentDomain.GetAssemblies()
    .Where(a => a.GetName().Name == "AlphaVSS.Common")
    .Single();