As you might know many organisations buy thinclients, for example from HP. These devices are also being called embedded systems, just a Windows XP SP3 with another name.
Basically Microsoft has handed out a sheet with all the End-of-Life data about all their products. Support for Windows XP has been stopped mainstream support a month ago but the strange thing is that the Windows Embedded Systems (2009 and POSready) will receive extended support (security patches) until 2019
The URL and sheet here:
Nice, so what?
If you change your registry with the following key it means you trick the Windows Update engine and will receive the Embedded Systems 2009 / POSready security updates within your Windows XP. Please note: only x86 systems are supported.
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\WPA\PosReady] "Installed"=dword:00000001