public static void SetWeakFileAssociation(string Extension, string KeyName, string OpenWith, string FileDescription, bool Unset = false)
{
RegistryKey BaseKey;
RegistryKey OpenMethod;
RegistryKey Shell;
BaseKey = Registry.CurrentUser.CreateSubKey("Software\\Classes\\" + Extension, RegistryKeyPermissionCheck.ReadWriteSubTree);
if (!Unset)
{
BaseKey.CreateSubKey("OpenWithProgids").SetValue(KeyName, "");
OpenMethod = Registry.CurrentUser.CreateSubKey("Software\\Classes\\" + KeyName);
OpenMethod.SetValue("", FileDescription);
Shell = OpenMethod.CreateSubKey("Shell");
Shell.CreateSubKey("open").CreateSubKey("command").SetValue("", "\"" + OpenWith + "\"" + " \"%1\"");
OpenMethod.Close();
Shell.Close();
}
else
{
RegistryKey ProgIds = BaseKey.OpenSubKey("OpenWithProgids", true);
if (ProgIds != null)
{
ProgIds.DeleteValue(KeyName, false);
}
Registry.CurrentUser.OpenSubKey("Software\\Classes\\", true).DeleteSubKeyTree(KeyName, false);
ProgIds.Close();
}
BaseKey.Close();
// Tell explorer the file association has been changed
SHChangeNotify(0x08000000, 0x0000, IntPtr.Zero, IntPtr.Zero);
}
internal void Write <T>(string property, T val)
{
var key = BaseKey.OpenSubKey(SubKeyName, true) ?? BaseKey.CreateSubKey(SubKeyName);
key.SetValue(property, val);
key.Close();
}
public static bool Associated(string KeyName = "ByteFlood", string Description = "TORRENT File", string Extension = ".torrent")
{
RegistryKey BaseKey;
RegistryKey OpenMethod;
RegistryKey Shell;
BaseKey = Registry.CurrentUser.OpenSubKey("Software", true).OpenSubKey("Classes", true);
if (!BaseKey.GetSubKeyNames().Contains(Extension))
{
return(false);
}
BaseKey = BaseKey.OpenSubKey(Extension);
OpenMethod = Registry.CurrentUser.OpenSubKey("Software", true).OpenSubKey("Classes", true);
if (!OpenMethod.GetSubKeyNames().Contains(KeyName))
{
return(false);
}
OpenMethod = OpenMethod.OpenSubKey(KeyName);
Shell = OpenMethod.OpenSubKey("Shell");
if (!Shell.GetSubKeyNames().Contains("open"))
{
return(false);
}
BaseKey.Close();
OpenMethod.Close();
Shell.Close();
return(true);
}