d STB-4 dm4.  Duplicate value identification.
d STB insert by Marc Jacobs, Department ETS/ICS, Faculty of Social Science,
d University of Utrecht, The Netherlands.
d Support:  FAX (011)-31-30-53 4405 and CUSMAR@@CC.RUU.NL
d After installation, see help ^chkdup^.

f dm4/chkdup.ado
f dm4/chkdup.hlp