On 17/10/2012 18:14, Michael wrote: > I can't compile even hello world on both Win 7 and Win XP. > > rust 0.4, latest mingw. The announcement seems to suggest you might need an older mingw: https://mail.mozilla.org/pipermail/rust-dev/2012-October/002489.html Also if you had 0.3 you need to uninstall it before installing 0.4.