Thanks for operative reply. I've look in "racket\collects\mred\private\wx\platform.rkt", found there (case (system-type) [(windows) (if (getenv "PLT_WIN_GTK") gtk-lib '(lib "mred/private/wx/win32/platform.rkt"))] [(macosx) '(lib "mred/private/wx/cocoa/platform.rkt")] [(unix) gtk-lib]) write start-racket-with-gtk.bat such this: set PLT_WIN_GTK=#t start D:\bin\racket\GRacket.exe And have such error in shell window: "ffi-lib: couldn't open libatk-1.0-0.dll", briefly. Using procexp.exe and procmon.exe I have much more details, down to full log of operations of gracket.exe from start to this error screen: all loaded modules, all visited paths, all values of all environment variables. <div class="gmail_extra"> <div class="gmail_quote">2012/11/3 Matthew Flatt <<a href="mailto:mflatt@cs.utah.edu" target="_blank">mflatt@cs.utah.edu</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> You can try setting the PLT_WIN_GTK environment variable, which will cause "racket\collects\mred\private\wx\platform.rkt" to select the Gtk backend under Windows. I haven't tried it in a while, though, so I don't know how well it will work (i.e., I gave up the idea of really supporting that mode). <div><div class="h5"> At Sat, 3 Nov 2012 20:16:01 +0400, Игорь Шилов wrote: > Hi there! > I use Racket v5.3 on Windows XP and trying to understand how DrRacket and > gracket works. I found "racket\collects\mred\private\wx\win32" - as I > understand, ffi bindings to user32.dll, a win32 user interface > implementation. Can I (and how) configure DrRacket and gracket works on > win32 version of GTK using "racket\collects\mred\private\wx\gtk"? > > -- > - Shilov Igor > P.S. My english is not so good, I work on it </div></div>> ____________________ > Racket Users list: > <a href="http://lists.racket-lang.org/users" target="_blank">http://lists.racket-lang.org/users</a> </blockquote></div> -- - Shilov Igor P.S. My english is not so good, I work on it </div>