Hi, I believe brlcad is simply the package name not the program name. To run the program you have a choice of two interfaces mged or the newer archer interface. You should be able to start these from the start menu. You should have a lot of documentation installed as html files that include tutorials on using mged. In case you cannot find it or prefer a pdf file try the following link: http://brlcad.org/w/images/c/cf/Introduction_to_MGED.pdf There's not much documentation available for archer but...