MACRO SplitPath = _splitpath     ' << This is contained in stdlib.h 

DIM a$, b$, c$, d$, e$

a$ = "C:\some\phony\dummy\directory\FakeFileName.txt"

SplitPath(a$, b$, c$, d$, e$)

?  "Orig Full Path .. : ", a$
?  "Drive Letter .... : ", b$
?  "Path ............ : ", c$
?  "Filename ........ : ", d$
?  "Extension ....... : ", e$

Result:

Orig Full Path .. : C:\some\phony\dummy\directory\FakeFileName.txt
Drive Letter .... : C:
Path ............ : \some\phony\dummy\directory\
Filename ........ : FakeFileName
Extension ....... : .txt