You said
DCS world have no SF activation/deactivation. Which product did you mean?
Let me try to clarify a bit on how it works to see if we have some misunderstandings.
Cleanup:
- Make sure you cleaned out \Saved Games\Config\network.vault since it contains some data for MP.
- Uninstall / remove the previous installation.
Install:
- DCS World, free - install first.
- 1 of <Any Module>, install next.
- Test with the MP, make sure you use the DCS web buyer account (hereby called 'Account1')
- install the next <module>
- Test again, still using Account1
- Install and test the last <module>, and test again.
Accounts:
All modules must be under the ownership of 'Account1'.
If one of the modules is not under Account1 ownership, leave it alone and send a support ticket to get it merged over to 'Account1'.