[?+]: What do I need to open WinCC flex 2008 project

[EH_PLC]

I want to open a project but I get the message "It was opened... (V1.4.0.0. (1.16.16)) can some one tell me what I need to open this project..
I have already installed WinCC flex 2008 SP1
Tx! for helping

[Info]

0. Archive project folder to ZIP
1. install flex 2008 sp3
2. Save or Save As Version SP1/SP2?

[EH_PLC]

Tx! everything working fine!!