loading other-than-default app.config files

[j]

I'm trying to write a section of code so that several applications
that all share some configuration options can load those options from
a single .config file. This code compiles and executes w/o error, but
it will not return the contents of any config file I give it.
The code to dump the sections always reports sections that do not
exist in the file.
Looking at appConfig.Type, the public key does not match the one in
the file.
What am i doing wrong?

FileInfo fi = new
FileInfo(Assemb ly.GetExecuting Assembly().Loca tion);

ExeConfiguratio nFileMap fileMap = new
ExeConfiguratio nFileMap();
string configfile =
Path.Combine(fi .DirectoryName, @"global.config ");
// string configfile = @"global.config ";
fileMap.ExeConf igFilename = configfile; // relative path
names possible

// Open another config file
Configuration config =

ConfigurationMa nager.OpenMappe dExeConfigurati on(fileMap,
ConfigurationUs erLevel.None);
ConfigurationSe ction appConfig = config.AppSetti ngs;

Console.WriteLi ne();
Console.WriteLi ne("Sections in "+config.FilePa th);

// Loop to get the sections machine.config.
foreach (ConfigurationS ection section in sections)
{
string name = section.Section Information.Nam e;
Console.WriteLi ne("Name: {0}", name);

Console.WriteLi ne(section.Sect ionInformation. GetRawXml());
}
..config file===========
<?xml version="1.0" encoding="utf-8" ?>
<configuratio n>
<configSections >
<sectionGroup name="applicati onSettings"
type="System.Co nfiguration.App licationSetting sGroup, System,
Version=2.0.0.0 , Culture=neutral , PublicKeyToken= b77a5c561934e08 9" >
<section name="Utilities .Global"
type="System.Co nfiguration.Cli entSettingsSect ion, System,
Version=2.0.0.0 , Culture=neutral , PublicKeyToken= b77a5c561934e08 9"
requirePermissi on="false" />
</sectionGroup>
</configSections>
<applicationSet tings>
<Utilities.Glob al>
<setting name="User" serializeAs="St ring">
<value>scott</value>
</setting>
<setting name="Password" serializeAs="St ring">
<value>tiger</value>
</setting>
<setting name="Source" serializeAs="St ring">
<value>oraHom e</value>
</setting>
</Utilities.Globa l>
</applicationSett ings>
</configuration>