Well, I have all assemblies included in the spices project and am still getting that exception?
Might the problem be within v5 which I can't register as registering doesn't work?
No, v5 fully featured, has a temporarily license and doesn't require registration.
Can you send me your assemblies or provide me with link to more operatively solve this problem (use 
address, please zip)?
Also, another issue is that I can set the strong name key for re-signing only global and not individually by assembly. I have some assemblies which I do not want to be signed
Do not worry about it, assembly will not signed if original assembly not signed.
And yet another problem are assemblies that are dynamically loaded with Assembly.Load.
Although I have DataFeed assembly, DataFeed.ESignal assembly and DataFeed.Fimat assembly in the spices solution and only set obfuscation to default, it fails to load assemblies.
Please send us your project to solve this problem operatively.