CREATE CURSOR crsTest (Account C(20), balance N(14,2), Value1 N(14,2))
FOR asd = 1 TO 150
    INSERT INTO crsTest VALUES ('01-'+TRANSFORM(asd), RAND()*1000, RAND()*100000)
NEXT
SET ANSI OFF
** You wil get ALL Accounts that starts with '01-10'
SELECT DIST * FROM crsTest WHERE Account BETWEEN '01-10' AND '01-10'
SET ANSI ON 

** Get ONLY '01-10'  Account
SELECT DIST * FROM crsTest WHERE Account BETWEEN '01-10' AND '01-10'

This is tested in VFP 9. I am not sure if VFP6 has SET ANSI command, so if not try:

CREATE CURSOR crsTest (Account C(20), balance N(14,2), Value1 N(14,2))
FOR asd = 1 TO 150
    INSERT INTO crsTest VALUES ('01-'+TRANSFORM(asd), RAND()*1000, RAND()*100000)
NEXT
lcAccFrom = PADR('01-10',20) && 20 is the length of the Account field
lcAccTo   = PADR('01-10',20) && 20 is the length of the Account field

SELECT DIST * FROM crsTest WHERE BETWEEN(Account,lcAccFrom, lcAccTo)