PM-MAINT SYSTEM SOFTWARE, SYSTEM PACKAGE TYPE S EXECUTABLE WITH SIMATIC WINCC (V6/7), WINCC FLEXIBLE 2008 (VIA OPC DA), WITH WINCC (TIA PORTAL) RT ADVANCED V11/12 (VIA OPC DA), RT PROFESSIONAL V11(SP2)/12, SINGLE-USER SYSTEM / MULTI-USER SYSTEM SERVER, SINGLE LICENSE, R-SW INCL. CONFIG.-SYSTEM, GERMAN/ENGLISH, DVD, OPERATING SYSTEMS WINDOWS XP PROF (32BIT), WINDOWS 2003 SERVER (32BIT), WINDOWS 7 (32/64 BIT), WINDOWS 2008 SERVER (32/64BIT)