diff --git a/Preparing-your-system-to-use-Stackage.md b/Preparing-your-system-to-use-Stackage.md
index 2151379..cc83484 100644
--- a/Preparing-your-system-to-use-Stackage.md
+++ b/Preparing-your-system-to-use-Stackage.md
@@ -28,7 +28,11 @@ On most POSIX systems, this directory will be `$HOME/.cabal/bin`. A simple way t
 
     export PATH=$HOME/.cabal/bin:$PATH
 
-Windows/Mac users: Please contribute more information!
+In Mac OS X, cabal installs binaries to: `~/Library/Haskell/bin/`.
+
+In Windows Vista or newer Windows, cabal installs binaries to: `%APPDATA%\cabal\bin`.
+`%APPDATA` is Windows specific Environment variable.
+Usually, this variable specifies `C:\Users\<username>\AppData\Roaming`.
 
 ## Haskell Platform