Say there are 2 games: 'A' and 'B' and there is another game 'C' which is a stand alone expansion to the games 'A' and 'B'. It says in the description box of the game 'C' that if you have both the games 'A' and 'B' already installed then you can play the game 'C' with new and advanced features.

If I buy the game 'C' first without buying the games 'A' and 'B' and install and start playing the game 'C' and then after a few days buy the games 'A' and 'B' and install them, would I be able to play the game 'C' with those new and advanced features.............or do I have to first uninstall 'C' then install 'A' and 'B' and then reinstall 'C'?

Please help....

I didn't find the right solution from the Internet.
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