title: Office Add-in project, dll and app.config file problems
body: <p>I have a library project that I created and have used in about three projects so far.  A WPF project, a Windows Forms project and a web app project.  The dll uses an App.Config file for various keys common to the office such as the path to the networked storage drive.  So now I have been asked to create a plug in for MS Office 2010 Excel and Access respectively.</p>
  
  <p>Now I have previously run into the situation where the library project will use the config file for its calling project so I had to add the keys into that project's config file so I figured I would be doing the same thing with this project.  I come to start fiddling around with it to see how I can get Office apps to call the dll methods and immediately see that it is not finding anything from the App.Config files.</p>
  
  <p>After looking around I see that an Office Add-in project is really just a project implementing the IDTExtensibility2 interface and registering itself as a COM dll.  So now I have a situation where I have a dll with a dependent dll and neither of them can find anything in a config file.  So where would I put the config file in this case?  I have tried putting it in the Office 14 folder with Excel.exe as well as putting it in the same folder as the Excel Worksheet that makes use of the Add-in but to no avail.  Any ideas are greatly appreciated.  Thanks!</p>