CompuServe Messages

Does anyone know of any software code/routine that I could use to eject a disk out of the Toshiba 3401B? Are eject codes standard for all drives ? I want to use a batch file to call a routine that will eject the disk upon exiting a program. I launch almost all my programs with batch files. (Use Windows only when I have to!) I bought my drive at a show, so the documentation isn't very complete. If someone could help me out, it would be greatly aprreciated! Barry