/sys$common/syshlp/helplib.hlb CC, Messages, ZERODIV  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <Context> division by zero occurs in evaluating the
                expression "<expression>".

 Description    A divide by zero occurred while evaluating a constant
                expression.  The value of the expression is
                undefined.

 User Action    Correct the constant expression so that it does not
                contain a division by zero.