lukasdan

Ok. Succeed. Like you said - It is possible to have different versions but it requires each version to be activated. I had a "wrong activation key" message as there was sth wrong with my Windows registry. It probably was result of a few installation and running attempts (with different versions of installation files). After deleting registry keys (according http://en.wiki.eagle.ru/wiki/Troubleshooting:starforce:5.x#Something_strange_with_your_serial_number_or_activation_problems.3F) and activation both versions (BS2 1.1.1.1 and DCSW 1.2.2) work. I've lost 1 activation during these experiments but it works at least now. Thank you very much for help.

I have standalone version of BS2, activated and working. Installed DCS World and BS2 module (full version, not upgrade) ..but after launching BS2 in DCSW there is activation window opened which shows "wrong activation key" in the next step. Having BS2 standalone and DCSW BS2 installed at the same time is not allowed? Do I need deactivate BS2 in order to sucesfully activate DCSW?