Configuring Custom Assembly resolution for assemblies dependent on a class library

Question

OK, here is the setup:

• A VB6 .exe that consumes some .Net classes.
• The classes reside in 5 .dll's but are exposed through one COM visible wrapper .dll
• Using an application manifest I can store the COM visible MyCOMVisibleWrapper.dll (and .tlb) wrapper in a subfolder named MyCOMVisibleWrapper.
• I would like to store the dependent .Net .dlls in that folder too.
• However the CLR looks for these .dll's in the folder where the VB6 executable resides, not in the folder where the wrapper .dll lives.

How can I add the MyCOMVisibleWrapper folder to the resolution path? I tried including a MyCOMVisibleWrapper.dll.config file with a <probing privatePath=MyComVisibleWrapper/> tag, but that doesn't work. I read about implementing the AssemblyResolve EventHandler but I am unsure about where to put that, as the .Net code has no main entry point.

Answer 1

You have to make a config file named MyVB6App.exe.config that has the following content:

    <configuration> 
     <runtime>
       <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
          <probing privatePath="MyCOMVisibleWrapper"/>
       </assemblyBinding>
     </runtime>
   </configuration>

Now you can put the whole shebang, apart from the MyVB6App.exe.Manifest in the MyComVisibleWrapper folder.

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