WinCC system software V7.3, RT 65536 (65536 Power Tags), runtime software, single license single license, SW and license key download Class A, 5 languages (de,en,fr,es,it), executable in Windows 7 Prof/Ent/Ult +SP1 (32 bit)/ 7 Prof/Ent/Ult +SP1 (64 bit)/ 8.1 Std/Prof/Ent/Ult (64 bit)/ Server 2008 R2+SP1 (64 bit)/ Server 2012 (64 bit) ******************************* E-mail address required for delivery Notes This product is downloadable only.