I can easily pass integers back and forth from VB (excel) to a fortran DLL
but cannot seem to do the same with arrays. I receive no errors only the
values of the elements of the arrays are all zero upon return from the DLL.

Any suggestion ?

Jon

It's been some time since I did that (with VB5 and Digital Visual Fortran)
but as I recall the Fortran DLL is expecting to be passed the address of the
first member of the array, so when you call it the parameter to pass is
yourarray(0) (replace 0 with whatever is your
base) and do it ByRef not ByVal.

Cheers, Russell Robinson