Actually, the RTP is NOT in a new project. A new project just has the location of the RTP recorded. That's why when you compress it, you have to tell it to include the RTP - that makes it copy all of those resources from their stored/common location INTO your compressed project.
You can compress your project WITHOUT the RTP, which gives you a smaller file to distribute. If the people you then give your game to have the RTP already installed (if they're also Ace users), it'll work for them right off the bat. If they don't, they can download the RTP separately, and can then use it for ALL Ace games they want to play that use the RTP and haven't included it with the download.
does this mean that I can do the following...
Note : I have two vx ace installed on my computer - one is a steam copy.
If I deleted the RTP folder from my steam folder (Program Files -> Steam -> SteamApps -> common -> rtp) or rather, deleted all the graphics and audio files.
Then I compressed the game and INCLUDED the RTP, would my game compress with the default resources or not?
Edit:
So, I deleted what I figured I could from the aforementioned location and YES, it works fine. Obviously I wouldnt recommend doing this unless you know how to make your game run without the RTP audio etc..
One thing I noticed while compressing/encrypting the data and including the RTP. It actually included all the RTP files within the compressed game application.
I mean, I unpacked the game application and was greeted with all the rtp folders - graphics, audio everything. Along with that was the files that should have been there, like the system folder and the game.exe
So essentially, when you include the rtp files in your compressed steam game, its not only including them in the game, its also copying them into another folder, within your project folder, and making it visible for everyone who downloads your game.