My problem is solved. The details are at the following post in the
comp.lang.fortran newsgroup.

http://groups.google.com.na/group/co...ae6d5b2dcf8c42

The "file not found" error 53 was caused by some fortran-compiler-
specific dlls that were needed that I didn't know about. When I
eliminated that, the problem cleared up.

But also the very same error message is triggered if the upper/lower
case of the routine name doesn't match that in the dll.

Cheers,

Brian