About HSP plugin - onitama/mucom88 GitHub Wiki

A "hspmucom.dll" file is a plugin that can be used by calling the scripting language HSP (Hot Soup Processor). The MUCOM88 Windows application is also described by the HSP. The hsplugin folder contains the source of the script and the plug-in document. For more information about HSP, see below.

Hot Soup Processor Official HP
https://hsp.tv/