Unable to read settings from app.Config
<p>I have an addin that is installed on various user's machine and on most it is working fine.
But for few users it is unable to load the settings from config file.
The file name is <code>xxAddin.dll.config</code> and it has some key and values pairs.
eg</p>

<pre><code>?xml version="1.0" encoding="utf-8" ?
configuration
  appSettings
    add key="KeywordDBPath" value="somepath" 
    add key="keywordServer" value="someserver" /
  /appSettings
/configuration
</code></pre>

<p>For most of the machines this is installed on, it works fine. But for few users the key values return <code>null</code>.</p>

<p>I have checked for config file in the installation folder and it exists and has the same contents. 
To be sure that installation was not corrupt, the application was installed again but no success.</p>

<p>I have tried looking up on various forums but none of the suggestions has helped so far.
Any suggestion or help would be appreciated.</p>
