But the user is asking for a "portable" version. Portable software doesn't require installation and can run from a USB drive or similar. However, I wonder if there's a legitimate source for a portable version of Flash CS4. Adobe doesn't offer any official portable versions anymore, and since it's discontinued, any available downloads might be from third-party websites.
: The official successor to Adobe Flash, available through the Adobe Creative Cloud Open-Source Tools GIMP Portable : For image editing (via PortableApps.com adobe flash cs4 portable download free exclusive
This feature allowed animators to create complex, chain-like movements (like limbs) much more easily. But the user is asking for a "portable" version