I'm not gonna do it your files broke my compiler after I tried to switch to my original files. Got it fixed but I'm not gonna risk having to lose my source files cause I have to reinstall my compiler. Which has happened.
Questions like that are usually already answered somewhere on the forums, usually in the Help sections. But I'll answer it here because I can't remember a post where it has been answered :P
SSE is a set of compiler optimisations to give a bit of a speed boost to the program, sse 2 and 3 are improvements on that.