BrowserSelect.Program.ProgramFilesx86 C# (CSharp) Метод

        public static string ProgramFilesx86()
        {
            if (8 == IntPtr.Size
                || (!String.IsNullOrEmpty(Environment.GetEnvironmentVariable("PROCESSOR_ARCHITEW6432"))))
            {
                return Environment.GetEnvironmentVariable("ProgramFiles(x86)");
            }

            return Environment.GetEnvironmentVariable("ProgramFiles");
        }

        public static List <Browser> find()
        {
            List <Browser> browsers = new List <Browser>();
            //special case , firefox+firefox developer both installed
            //(only works if firefox installed in default directory)
            var ff_path = Path.Combine(
                Program.ProgramFilesx86(),
                @"Mozilla Firefox\firefox.exe");

            if (File.Exists(ff_path))
            {
                browsers.Add(new Browser()
                {
                    name = "FireFox",
                    exec = ff_path,
                    icon = IconExtractor.fromFile(ff_path)
                });
            }
            //special case , Edge
            var edge_path = Path.Combine(
                Environment.GetFolderPath(Environment.SpecialFolder.Windows),
                @"SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe");

            if (File.Exists(edge_path))
            {
                browsers.Add(new Browser()
                {
                    name = "Edge",
                    //exec=edge_path,
                    // http://answers.microsoft.com/en-us/insider/forum/insider_internet-insider_spartan/how-to-start-microsoft-edge-from-command-line/25d0ba93-4e8b-41cb-adde-461d8fb58ec1
                    exec = "edge",
                    icon = IconExtractor.fromFile(edge_path)
                });
            }

            //gather browsers from registry
            using (RegistryKey hklm = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32))
                browsers.AddRange(find(hklm));
            using (RegistryKey hkcu = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry32))
                browsers.AddRange(find(hkcu));

            //remove myself
            browsers = browsers.Where(x => Path.GetFileName(x.exec).ToLower() !=
                                      Path.GetFileName(Application.ExecutablePath).ToLower()).ToList();
            //remove duplicates
            browsers = browsers.GroupBy(browser => browser.exec)
                       .Select(group => group.First()).ToList();

            return(browsers);
        }