File Names and Paths
ADD BACKSLASH : ADD BACKSLASH String
REMOVE BACKSLASH : REMOVE BACKSLASH String

CHANGE FILEEXT$ : Return String=CHANGE FILEEXT$(FileName,Extension)
EXPAND FILENAME$ : Return String=EXPAND FILENAME$(FileName)
EXTRACT FILEDRIVE$ : Return String=EXTRACT FILEDRIVE$(FileName)
EXTRACT FILEEXT$ : Return String=EXTRACT FILEEXT$(FileName)
EXTRACT FILENAME$ : Return String=EXTRACT FILENAME$(FilePath)
EXTRACT FILEPATH$ : Return String=EXTRACT FILEPATH$(FileName)
MAKE TEMPFILE$ : Return String=MAKE TEMPFILE$(Prefix)
RELATIVE FILEPATH$ : Return String=RELATIVE FILEPATH$(BaseName,DestName)
TEMPDIR$ : Return String=TEMPDIR$()