Configuration file for .NET objects running under COM+ 1.5

From https://blogs.msdn.com/florinlazar/archive/2003/12/04/41369.aspx:

setting the Application Root Directory for that component to point to a directory where you have two files: application.manifest and application.config. The manifest can be as simple as:

<?<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
</assembly>

The application.config will be your normal app config where you can put your specific settings for your component

works like a charm.