This might get you started:
(defun filepaths (/ prefs files path)
(setq prefs (vla-get-preferences (vlax-get-acad-object))
files (vla-get-files prefs)
)
(progn
(setq path "C:\\YOUR PATH\\")
(vla-put-printerconfigpath files (strcat path "Plotters"))
(vla-put-printerstylesheetpath
files
(strcat path "Plot Styles")
)
(vla-put-printerdescpath
files
(strcat path "Plotters\\PMP")
)
(vla-put-plotlogfilepath files (strcat path "Plot Log"))
(vla-put-templatedwgpath
files
(strcat path "Sheet Manager")
)
(vla-put-pagesetupoverridestemplatefile
files
(strcat path "sheet manager\\sht_manager_overrides.dwt")
)
)
(princ)
)