A little background: I have Intel's Fortran90 compiler which I used for years.  However, I recently had to reinstall it and found that the key
was no longer valid.  Intel did not have the decency to return my emails so I looked for another Fortran90 compiler.

I found something called FTN95 (British, I believe) but their linker couldn't find any assembler routines even though they were placed
in the library.

I am in the process of testing gfortran.  However, when I compile a module called MOD_WIN_APIS containing interfaces to Microsoft
API functions I get the error:

   Error: Derived type '{whatever}' at (1) is being used before it is defined

I have defined these types in another module named MOD_TYPES which is compiled prior to MOD_WIN_APIS.
MOD_WIN_APIS uses MOD_TYPES (with the statement "USE MOD_TYPES") prior to any interfaces being defined.

Why am I getting this error when the types are defined???

Thank you,
Ken