Here is a "helpful paper" (a quick reference guide) on finding, running, and using a portable version of Macromedia Flash safely.
: The PC only had 512MB of RAM. Every time he imported a .wav file for the soundtrack, the software threatened to "Not Responding." macromedia flash portable
Macromedia Flash was built for Windows XP and 98. Running it on modern Windows 10 or 11 requires adjustments: Here is a "helpful paper" (a quick reference