There is no overarching file that contains all "keywords". Part of your confusion with the files you mention is that RH allows you to specify a "keyword" in a number of places, each with a specific purpose. The rhakeyword.apj file is used for "See Also" keywords, whilst the rhkkeyword.apj file is (I think) used for topic level "index" keywords. On top of this you can assign keywords as part of a topic's properties.
I think what you are referring to is the keywords used to build the search index that controls where a topic sits in the search results. If this is correct, I hope the following link will prove useful:
Thanks for the quick answer RoboColum(n),
I was actually referring to the keywords used to build the search index.
So, such a file doesn't exist?
During the summer, I'm barely sure that I had an issue when generating the output (or maybe when using SVN, I'm not really THAT sure lol) that erased all the keywords, the conditional tags and the context sensitivity.
Therefore, I thought that such a file might exist.
As I said there is no PROJECT file that contains all the search index. However the OUTPUT produced from your project may well have an individual file you can look at. This depends though on your output type. From your other ongoing post is it safe to assume you are also referring to FlashHelp here? If so, I am afraid I wouldn't know where to look. Sorry!
You assumed right, this is a flashhelp output.
Thanks anyway for your answer.