A quick tutorial how you can compile the valac compiler on Windows 8.1 to compile and run Vala programs. Download MinGW-builds from http://sourceforge.net/projects/mingwbuilds/ Run "mingw-builds-install.exe", select "x32" as Architecture, "win32" as Threads and "sjlj" as Exception: Continue installation, I placed my to "C:\mingw-builds" Download the latest "external-binary-packages" from http://so