You can download a trial version of WinCC flexible 2008 (which may include SP3 or SP5) from the Siemens Industry Support Portal . This requires a login as a registered customer. Updates/Hotfixes:
: WinCC Flexible 2008 SP3 is technically not released for Windows 10. For Windows 10 users, Siemens recommends downloading the Trial version of WinCC flexible 2008 SP5 , which is executable on Windows 10 and accepts existing SP3 licenses. Download Wincc Flexible 2008 Sp3
Siemens offers a trial version of WinCC flexible 2008 that can be used for new installations or to upgrade existing ones. Registration: You must be a registered user on the Siemens Industry Online Support (SIOS) site to access the files. File Handling: You can download a trial version of WinCC