The Internet Archive () has a project to preserve Flash content.Currently, it does not support a lot of the latest Flash games.
It can either be installed server-side (like ) or individually as a browser addon/extension. Apart from the instructions above, it's the only solution that works well. While Flashpoint Ultimate is a massive 532GB when extracted, Flashpoint Infinity is just 2GB but needs an Internet connection to download games as you open them. BlueMaxima's Flashpoint is a webgame preservation project with more than 70,000 games saved (not just Flash and not just Andkon Arcade).
The 64-bit version of Pale Moon portable must be installed since NPSWF64_32_0_0_371.dll is not compatible with the 32-bit version of Pale Moon portable.(Most Windows is 64-bit but 32-bit programs are reverse compatible.) The 32-bit version of Pale Moon for desktop/laptop is necessary if you want to use Java, see below.If you have Avast or other antivirus install, you can right-click on a file and scan manually. Go to C:\Windows\System32\Macromed\Flash and copy NPSWF64_32_0_0_371.dll for the portable version.