I understand you're looking for content related to Adobe After Effects CS6, but I should clarify that seeking "portable" or "free" downloads of commercial software like Adobe After Effects typically involves copyright infringement. Adobe software is proprietary, and downloading cracked or portable versions is illegal and unsafe—often leading to malware, data theft, or system instability.
If you need motion graphics software for free, you do not need to use a dangerous portable crack of a 12-year-old program. Here are three excellent, safe, and alternatives:
: Files labeled "portable" often require users to disable antivirus software, leaving the computer vulnerable to viruses and malware.