<div class="gmail_quote"><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">However, from the command line, I get another error: <<< E:\Projets\Scheme-svn\towers>racket -S E:\Projets\Scheme-svn compile.rkt car: expects argument of type <pair>; given '() === context === M:\Program Files\Racket\collects\compiler\private\winicon.rkt:514:44: loop M:\Program Files\Racket\collects\compiler\private\winicon.rkt:514:44: loop M:\Program Files\Racket\collects\compiler\private\winicon.rkt:514:44: loop M:\Program Files\Racket\collects\compiler\private\winicon.rkt:514:44: loop M:\Program Files\Racket\collects\compiler\private\winicon.rkt:511:32: loop M:\Program Files\Racket\collects\compiler\private\winicon.rkt:511:32: loop M:\Program Files\Racket\collects\compiler\private\winicon.rkt:499:25: get-lines M:\Program Files\Racket\collects\compiler\private\winicon.rkt:488:2: build-dib M:\Program Files\Racket\collects\compiler\private\winicon.rkt:180:21 M:\Program Files\Racket\collects\racket\private\map.rkt:45:11: for-each E:\Projets\Scheme-svn\towers\compile.rkt: [running body] >>> </blockquote><div> I somehow missed the fact that it talks about "winicon"... By removing (again) the #:aux line, the command line compilation works fine. My bad. But I'd like to know how to compile correctly in DrRacket, if possible (this issue is not solved). And I don't know what is the problem with the icon. It is a 16x16, 32-bit file. </div></div>