CODE EXAMPLE FOR SHELL

get all installed application in windiws in C#

List<InstalledProgram> installedprograms = new List<InstalledProgram>();
    string registry_key = @"SOFTWAREMicrosoftWindowsCurrentVersionUninstall";
    using (RegistryKey key = Registry.LocalMachine.OpenSubKey(registry_key))
    {
        foreach (string subkey_name in key.GetSubKeyNames())
        {
            using (RegistryKey subkey = key.OpenSubKey(subkey_name))
            {
                if (subkey.GetValue("DisplayName") != null)
                {
                    installedprograms.Add(new InstalledProgram
                    {
                        DisplayName = (string)subkey.GetValue("DisplayName"),
                        Version = (string)subkey.GetValue("DisplayVersion"),
                        InstalledDate = (string)subkey.GetValue("InstallDate"),
                        Publisher = (string)subkey.GetValue("Publisher"),
                        UnninstallCommand = (string)subkey.GetValue("UninstallString"),
                        ModifyPath = (string)subkey.GetValue("ModifyPath")
                    });
                }
            }
        }
    }