Here is something to try adding before the **[object load]**:

```
set appDomain [object invoke -alias AppDomain CurrentDomain]

proc assemblyResolve { sender e } {
  #
  # HACK: This assumes that each assembly is named using the pattern:
  #
  #       "<baseAssemblyName>.dll"
  #
  #       This may not be correct for all assemblies being loaded.
  #       Of course, this script procedure is free to simply use a
  #       list of hard-coded assembly name to file name mappings.
  #
  set fileName [file join \
      [file dirname [file dirname [lindex [info assembly] end]]] \
      GRPCRemoteClient [appendArgs [$e Name] [info sharedlibextension]]]

  puts stdout $fileName

  return [object load -loadtype File $fileName]
}

$appDomain -marshalflags +DynamicCallback add_AssemblyResolve assemblyResolve
```