Why OS.Version reports Windows 8.0 for Windows 8.1?

Question

When use Environment.OSVersion.Version.ToString(); on this mode

MessageBox.Show(Environment.OSVersion.Version.ToString()); show the value 6.2 when use ver command on CMD return 6.3

I have Windows 8.1 Professional Edition Original

like this (the messageBox is a RadMessageBox from Telerik Controls):

Why?

Answer 1

This is a feature , not a bug. It is because Windows 8.1 will only report the version as 6.3 to applications which have been specifically targeted to that platform.

See here and here for official documentation.

Answer 2

From the manual ;

The OSVersion property reports the same version number (6.2.0.0) for both Windows 8 and Windows 8.1.

In other words, a documented "limitation".

Answer 3

http://msdn.microsoft.com/en-us/library/windows/desktop/ms724832(v=vs.85).aspx

If you look here you find that it depends on the manifest of your application. Look at the star point :)

Answer 4

I have used this method!

RegistryKey key2 = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "");
                RegistryKey subkey2 = key2.OpenSubKey("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion");
                string value = subkey2.GetValue("CurrentVersion").ToString();
                if (value == "6.3")