Merge two assemblies at runtime - C#

Is it possible to merge two assemblies at runtime such that, when you iterate over the ExportedTypes, all the types from both original assemblies are returned?

The why:

I use a database migration framework to update my databases. It take a single assembly made up of special classes which defines the modifications made to the database.

I have two databases the are very similar. Many tables are identical, but each has a couple of unique tables. I would like to have a general migration assembly and a specific assembly for eac开发者_Python百科h database. But to use it with my framework, I need to stuff the two assemblies into a single one. Is this possible?

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Take a look at ILMerge:

ILMerge is a utility for merging multiple .NET assemblies into a single .NET assembly.

Though it only runs in the v2.0 .NET runtime.