It probably won't be impossible, but having worked through this many, many years ago (with different versions), it will demand a great deal of experiment, detailed analysis of the type of project and all of the options and included files; in some cases the header files need intelligent adjustment. A plug-in is a type of DLL with very specific requirements as everything has to match the internal conventions used to build Acrobat. Plug-ins are not like ordinary apps because they become a true part of the app that runs them, and any error crashes the whole app. It is not, frankly, worth the time needed to do such a port at your stage, especially as you won't be able to know whether your problems are due to porting issues or inexperience with plug-ins.
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