# E Run-Time Library Module Routines on Windows Systems

Compaq Fortran provides library modules containing the following routines for Windows systems:

- Run-time functions and subroutines for graphics, QuickWin, and other applications (in modules DFLIB and DFLOGM)
- Procedures that help you port your programs to or from other systems (in module DFPORT)
- Procedures that help you write foreign language programs for international markets (in module DFNLS)
- Procedures that help you write programs that use Component Object Model (COM) and Automation servers (in modules DFCOM and DFAUTO)

When you include the statement USE module-name in your program, these library routines are automatically linked to your program if called.

This appendix summarizes these routines. For more information on each routine, see the Compaq Visual Fortran online Reference.

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