I was wondering if someone could help me with the error handling in FASM. I am going to write a program which launches FASM from within it, and I want errors to be handled by my program, so I don't want the errors thrown to the screen. I didn't see a thread on this, but if there is just point me in that direction. If not, please let me know what I would need to edit, or give me and idea so I can do this on my own. Thank you in advance.

you need to "redirect STDOUT" to your process from child (FASM) process - try to look up some info on this.

Thanks for the quick reply! I'll look into it and update what I find a bit later.

You need to redirect STDOUT, STDERR and maybe STDIN. I suggest that first experience the problem in C. Redirection is simple. Functions (system calls) fork(), pipe(), dup(), close(), execl() are your friends.
Note, after call to dup() you will need to close the original STDOUT, STDERR, STDIN. Not speaking about that if you use pipe you might want to close one of the both directions (read/write) in the parent process and the the other in the child process.