private static void DetermineSupport()
{
Console.Write("Determining client hook method...");
switch (OSVersion)
{
case OSVersionType.Win8:
NameServerHookMethod = NameServerHookMethodType.CacheHook; break;
default: // case OSVersionType.Win7:
NameServerHookMethod = NameServerHookMethodType.ChangeNS; break;
}
Console.WriteLine(" {0}", NameServerHookMethod);
}
private void InsertCacheHook()
{
var key = GetDnsCacheConfigKey(true);
if (key != null)
{
var subs = key.GetSubKeyNames();
RegistryKey found = null;
foreach (string name in subs)
{
var configKey = Registry.LocalMachine.OpenSubKey(DnsPolicyCacheConfigName + name);
var val = configKey.GetValue("Name", null) as string[];
if (name == configGUID)
{
if (found != null) // duplicate found
{
DeleteConfigKey(key, name);
}
else if (!val.Contains(".bit"))
{
found = null;
DeleteConfigKey(key, name);
}
else
{
found = configKey;
}
}
else if (val.Contains(".bit"))
{
DeleteConfigKey(key, name);
}
}
if (key != null && found == null)
{
InstallDnsCacheConfigKeys(key);
}
}
else
{
RemoveCacheHook();
NameServerHookMethod = NameServerHookMethodType.ChangeNS;
Console.WriteLine("CacheConfig Failed: switching to {0}", NameServerHookMethod);
}
}
