diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index c20f6346c98..e1e38b9cc9c 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -1993,13 +1993,6 @@ function check_browser_version($brand="MSIE", $version=5.5) {
     return false;
 }
 
-function is_windows() {
-/// Detects whether the server is Windows
-    global $CFG;
-     
-    return strpos($CFG->dirroot, ':');
-}
-
 function ini_get_bool($ini_get_arg) {
 /// This function makes the return value of ini_get consistent if you are
 /// setting server directives through the .htaccess file in apache.