Hi HalHoffman,
The sa_api and ftd2xx DLLs do not depend on anything in the .Net framework but do depend on the VS2012 redistributables. Have you installed those yet? Have you tried using a tool like dependency walker to determine which libraries you might be missing? I believe you can use it on the sa_api DLL. Also if it is a missing library, simply compiling it with the #pragma comment(lib,””) flag will tell you which DLL is missing when you go to run it.
I am running 1909 and have run 1903 in the past, both OS run the sa_api just fine. Does Spike work on these newer computer? If yes, it is probably because the VS2012 redistributables are shipped in the Spike directory.
Regards,
Andrew