Adobe does not officially support a portable version of Illustrator CS6. The PortableApps.com format is a community creation. Legally:
Understanding Adobe Illustrator CS6 Portable (PortableApps.com Format) Adobe.Illustrator.Portable.CS6-PortableApps.comFormat
To use Adobe Illustrator Portable CS6-PortableApps.comFormat, users will need: Adobe does not officially support a portable version