Instead of risking a legacy download that likely won't work, I suggest trying or a web-based tool like Vector.com for immediate, safe access to vector editing. to handle vector files?
Adobe has never produced a portable "plug-and-play" version of Illustrator CC or CS5. Adobe Illustrator Cs5 Portable Free Download Mac
There is of Adobe Illustrator CS5 for Mac. Adobe Illustrator CS5 - Review 2010 - PCMag UK Instead of risking a legacy download that likely