Configuration File in Interop Application

I have a .NET Assembly (Library) that is a COM Callable Wrapper. The client
for this library is a standard Win32 Windows application using the library
via COM. The .NET Library needs to read some stuff from an application
configuration file (speciically, to set up TraceListeners). Where should the
application configuration file go and what should it be called (i assume
appname.exe.config).

Thank you,
--
James