What type of error did you have? Describe as accurately as possible!
Is it possible to mix down a project to one single exe? What are the settings needed?
Yes, it's possible to publish projects without any settings.
I'm using a7, is it different from a6?
No, AFAIK it's the same, at least when your A7 edition supports *.exe-compiling. What's your version, A7.XXX trial, com, pro?