First of all, thank markfm, Here I have a new problem. Now I had set up Cygwin, It's OK. And In your Cygwin shell, enter: tar xjvf contrib-20040413-win32-bin-gcc3.3.1-only.tar.bz2 -C / It's OK too. Then,c:\program files\subversion\bin\svn" co svn://svn.videolan.org/vlc/trunk vlc-trunk It's OK t...