How to change LAN Settings (proxy configuration) programmatically

Question

I am writing a program to automatically switch my proxy address based on the network I am connected to.

I have so far got everything to work except the part that I have

Answer 1

I searched all through for this. But as I couldnt find, I had written the below code snippete that works for this purpose.

    /// 

    /// Checks or unchecks the IE Options Connection setting of "Automatically detect Proxy"
    /// 
    /// Provide 'true' if you want to check the 'Automatically detect Proxy' check box. To uncheck, pass 'false'
    public void IEAutoDetectProxy(bool set)
    {
        // Setting Proxy information for IE Settings.
        RegistryKey RegKey = Registry.CurrentUser.OpenSubKey(@"Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Connections", true);
        byte[] defConnection = (byte[])RegKey.GetValue("DefaultConnectionSettings");
        byte[] savedLegacySetting = (byte[])RegKey.GetValue("SavedLegacySettings");
        if (set)
        {
            defConnection[8] = Convert.ToByte(9);
            savedLegacySetting[8] = Convert.ToByte(9);
        }
        else
        {
            defConnection[8] = Convert.ToByte(1);
            savedLegacySetting[8] = Convert.ToByte(1);
        }
        RegKey.SetValue("DefaultConnectionSettings", defConnection);
        RegKey.SetValue("SavedLegacySettings", savedLegacySetting);
    }