set "a=%~1"
set "b=%~2"
set "c=%~3"
set "d=%~4"
set "a=%a:/=\%"
set "b=%b:/=\%"
set "c=%c:/=\%"
set "d=%d:/=\%"
copy %a%\%c% %b%\
copy %a%\%d% %b%\ftd2xx.h