CLR host and partial binding

Hi,

I'm trying to write a CLR host (.NET 4) to run an existing .NET product from C++.

I've implemented IHostAssemblyStore::ProvideAssembly and it works most of time.

However, I can't make it work in the following scenario:

Suppose there is an assembly called TestDep.

Running:

Assembly.Load("TestDep, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null");

from my hosted code works (TestDep.dll is resolved by my ProvideAssembly(..) implementation).

However, running:

Assembly.Load("TestDep, Culture=neutral");

does not. ProvideAssembly is not even called.

This is from the fusion log:

LOG: Fusion is hosted. Check host about this assembly.
LOG: Assembly is not in CLR Loaded list. Asking host assembly store.
LOG: Input is partial name. Skip host assembly store lookup.
ERR: Unrecoverable error occurred during pre-download check (hr = 0x80070002).

I tried to fix this by registering to AppDomain.AssemblyResolve event with this code:

if (args.name == "TestDep, Culture=neutral") {
	return Assembly.Load("TestDep, Version=1.0.0.0, Culture=neutral, PublicKeyToken=nulll");
}

But it still doesn't work. Now fusion log contains this:

LOG: The same bind was seen before, and was failed with hr = 0x80070002.
ERR: Unrecoverable error occurred during pre-download check (hr = 0x80070002).

I tried to disable binding caching by putting:

<runtime><disableCachingBindingFailures>1</disableCachingBindingFailures></runtime>

In my app.config but it had no affect.

Adding

<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"><qualifyAssembly partialName="TestDep" fullName="TestDep, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"/></assemblyBinding>

did not help either.

The only workaround I found was to call

Assembly.Load("TestDep, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null");

Before running the hosted code.

Is there a better solution? How am I supposed to support partial binding in my CLR host?
Is it possible to disable binding caching from code?
Of course I can't modify the application I'm trying to host (change partial to full bindings).

Thanks!