diff --git a/README b/README
index 23425e84c294db9a81892ee254ee732a4dc0a6dd..b825bed54b0bb76aefbb27fd169a9efb3286ca8d 100644
--- a/README
+++ b/README
@@ -1,14 +1,21 @@
-This program compiles on linux and mac (it may also work on windows, though
-it was not tested). It requires:
+This program compiles on GNU/Linux, Mac and Windows (this port is currently
+in development). It requires:
 -qmake,
 -make,
--g++ (maybe other compilers work),
+-g++ in GNU/Linux or Mac
+-Visual C++ in Windows
 -Qt 4,
 -OpenGL 3.1 or GLew 1.5.2,
--libnetpbm, and
--glut or freeglut.
+-freeglut (maybe it also works with glut),
+-libjpeg, and
+-libnetpbm (if using any compiler other than Visual C++).
 
-To build, simply run qmake and make.
+In windows, you need to get some libjpeg and libnetpbm from the GnuWin32
+project (http://gnuwin32.sourceforge.net). Additionally, you need flex
+because it contains an implementation of unistd.h.
+
+To build in GNU/Linux and Mac, simply run qmake and make. In Windows, it
+would be easier to go thru QtCreator.
 
 To configure, you can set in the file ~/.panorc the following options.
         shader_dir=<path to directory containing the shader files>