Adobe never released an official portable version of After Effects. Any portable version you find online is an illegal crack, often bundled with:
Adobe moved to a subscription-based model in 2013. While CS6 is no longer sold, you can access the most current version through these official methods: Photoshop cs6 permanent free trial? - Adobe Community 03-Mar-2022 — adobe after effects cs6 110212 portable hot
The CS6 release introduced several "wow" features that redefined the workflow for compositors at the time: Global Performance Cache: Adobe never released an official portable version of
: Official versions receive regular security updates and bug fixes. With a portable or cracked version, you have no access to Adobe’s support if the software fails or compromises your computer. Adobe After Effects CS6 Features - Adobe Community 03-Mar-2022 — The CS6 release
Adobe After Effects CS6 (version 11.0.2.12) is a legacy motion graphics and visual effects software released in 2012 . While the original CS6 remains highly regarded for its performance, "portable" versions are that carry significant security and stability risks . Performance and Core Features