A "portable" app is typically a version of software that has been modified to run without being formally installed on a computer's registry. While this sounds convenient for working across different workstations, Adobe does not officially release "Portable" versions of its Creative Suite (CS) or Creative Cloud (CC) applications. The Risks of Using Unofficial Portables:
Adobe Illustrator CS5 is now considered "End of Life" software. This means Adobe no longer provides security updates, bug fixes, or technical support for it. Compatibility Status adobe illustrator cs5 portable
Because the "Portable" version is essentially a hacked-together package, vital system files and dependencies are often missing or corrupted. A "portable" app is typically a version of
Using modified Adobe software is a violation of the Terms of Service and intellectual property laws. Compatibility and End of Life This means Adobe no longer provides security updates,
This is the most critical danger. When you download an "Adobe Illustrator CS5 Portable" executable from a torrent site or a file-hosting forum, you are trusting an anonymous uploader with your computer's security.
Variable width strokes and precise arrowhead controls.
A powerful feature that lets you intuitively merge, edit, and fill shapes directly on the artboard. System Requirements