OPEN "\words\words4.txt" FOR BINARY AS #1

src$ = "abceiknors": h$ = src$

DO
  w1$ = MID$(src$, 10, 1) + MID$(src$, 1, 1) + MID$(src$, 3, 1) + MID$(src$, 4, 1)
  IF isWord(w1$) THEN
   w2$ = MID$(src$, 10, 1) + MID$(src$, 9, 1) + MID$(src$, 7, 1) + MID$(src$, 6, 1)
  IF isWord(w2$) THEN
   w3$ = MID$(src$, 2, 1) + MID$(src$, 3, 1) + MID$(src$, 5, 1) + MID$(src$, 6, 1)
  IF isWord(w3$) THEN
   w4$ = MID$(src$, 2, 1) + MID$(src$, 1, 1) + MID$(src$, 9, 1) + MID$(src$, 8, 1)
  IF isWord(w4$) THEN
   w5$ = MID$(src$, 8, 1) + MID$(src$, 7, 1) + MID$(src$, 5, 1) + MID$(src$, 4, 1)
   IF isWord(w5$) THEN
     PRINT w1$, w2$, w3$, w4$, w5$
     PRINT
   END IF
  END IF
  END IF
  END IF
  END IF
  permute src$
LOOP UNTIL h$ = src$

CLOSE

DEFLNG A-Z
FUNCTION isWord (w$)
  n = LEN(w$)
  w1$ = SPACE$(n)
  l = LOF(1) / n
  low = 1: high = l
  DO
    mid = INT((low + high) / 2)
    GET #1, (mid - 1) * n + 1, w1$
    IF w1$ = w$ THEN isWord = -1: EXIT FUNCTION
    IF w1$ < w$ THEN low = mid + 1:  ELSE high = mid - 1
  LOOP UNTIL low > high
  isWord = 0
END FUNCTION

finds four solutions:

0134          0976          2356          2198          8754

bank          brie          once          oars          sick

beak          bris          cans          cero          oink

corn          cake          brie          boas          skin

boas          brie          cane          cork          kins

Only CERO is an unusual word; also KINS as a plural.

cero: a large Atlantic and Gulf Coast mackerel game fish, Scomberomorus regalis.

kins is listed in http://homepage.ntlworld.com/adam.bozon/Scrabble4.htm, a site that was found Googling scrabble words.