I'm trying to read settings in the App.config file in a .NET com library app
using the following code:
System.Configuration.ConfigurationSettings.AppSett ings("foo")

This works fine in ASP.NET, and also in VB.NET Windows app - but no go in
the com library application.

I don't get any errors - just a return string of nothing.

Any ideas?

You could try ConfigurationSettings.AppSettings.Get("foo")

Typically, whatever project you add a reference to (for example, if the COM app was added as a reference to the VB.NET windows app), it uses those configuration settings.

Brian