AppSettings not readable with machine.config in Vista

Question

I recently switched to Vista x64, and suddenly my machine.config appSettings block is not read by any .NET assemblies.

Right after the configuration sections and before configProtectedData in C: \ Windows \ Microsoft.NET \ Framework \ v2.0.50727 \ CONFIG \ machine.config I have:

<appSettings>
    <add key="foo" value="blah"/>
</appSettings>
<system.runtime.remoting>
    <customErrors mode="Off"/>
</system.runtime.remoting>

You will have to save it by running Notepad ++ as an administrator, because it is blocked otherwise, probably for good reasons. Running the following code in SnippetCompiler or VS.NET 2008:

    foreach(var s in ConfigurationManager.AppSettings.AllKeys)
    {
        Console.WriteLine(s);   
    }

    AppSettingsReader asr = new AppSettingsReader();

    Console.WriteLine(asr.GetValue("foo", typeof(string)));

does not issue any keys and is not executed with the following exception:

---
The following error occurred while executing the snippet:
System.InvalidOperationException: The key 'foo' does not exist in the appSettings configuration section.
    at System.Configuration.AppSettingsReader.GetValue(String key, Type type)
    at MyClass.RunSnippet()
    at MyClass.Main()
---

, , machine.config , , app.config, , , 2000 XP.

Answer 1

:

ConfigurationManager.OpenMachineConfiguration().FilePath

:

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Config\machine.config

:

C:\Windows\Microsoft.NET\Framework\v2.0.50727\CONFIG\machine.config

64 . appSettings .