Correction

[Marc Schellens <m_schellens(at)hotmail.com>]

Ok, a small correction to the last email:
Of course you can use a dynamic library in your
own (compiled, i.e. Fortran, C, C++) programs.
So it might be possible to use an old IDL library
via CALL_EXTERNAL and a C (or whatever language) wrapper
program. But still you need deeper knowledge of the library.

cheers,
:-) marc