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;CheerpX for Flash
:A payware HTML5 emulation package which combines CheerpX, an x86 emulator in WebAssembly, with Harman International's extended support version of the official Flash player from Adobe. No-one on this wiki has formally evaluated this system (yet), although we don't expect it to perform well given the additional overhead from having x86 binary code as a middleman.
→Comparisons
;Adobe Flash Player
:The official closed-source implementation by Adobe, who discontinued it in 2020. The web version relies on [[wikipedia:NPAPI|NPAPI/PPAPI]], an obsolete browser plugin system that for many years only stuck around specifically because of this Flash plugin; when the plugin was officially dropped by Adobe, so too was the plugin system dropped by all the major browser vendors. The desktop player version is still available for download from the Adobe website's debug downloads section, and Harman International is also maintaining an extended support version specifically for enterprise users.
:;CheerpX for Flash
::A payware HTML5 emulation package which combines CheerpX, an x86 emulator in WebAssembly, with Harman International's extended support version of the official Flash player from Adobe. No-one on this wiki has formally evaluated it (yet), but you shouldn't expect amazing performance given the added complexity of such an approach.
;Ruffle
;swf2js
:An open-core HTML5 implementation that uses a dynamic recompiler. The open-source "Free Version" supports limited features, such as AS1, AS2 and ZLIB compression, whereas the payware "Production Version" supports further features, such as AS3 and LZMA compression.
;Shumway
