I have a C++ program that dynamically loads Compaq Visual
Fortran v6.6 DLLs and invokes them.  I have two Fortran
DLLs, one that only does calculations and standard
output, the other that also includes its own file I/O.  

The first DLL loads and executes properly, but not the
second.  It loads properly and begins execution, but as
soon as I get to a file open command, it heads off for
space and never returns.

This program is cross-platform, as well, and works
properly under Solaris, so it sounds to me like it's a
library linking problem or something like that.

All the Fortran DLLs are created as multi-threaded, which
according to MS help, links with DFORMDD.LIB (debug),
which in turn automatically links MSVCRTD.LIB into the
DLLS.  

In VC++.NET 2003, the executable is created as multi-
threaded also.  In a vain attempt to avoid library
collisions, I tried explicitly ignoring LIBCMTD.LIB and
OLDNAMES.LIB and linking in DFORMDD.LIB, but I got the
same result as linking with the default libraries.

Any ideas?

In advance, thank you for your help.

-Dan Hoyt