diff --git a/examples/howto-add_fd-and-popen.cxx b/examples/howto-add_fd-and-popen.cxx
index c1f7df315..ef7e07bba 100644
--- a/examples/howto-add_fd-and-popen.cxx
+++ b/examples/howto-add_fd-and-popen.cxx
@@ -32,12 +32,22 @@
 //     http://www.fltk.org/str.php
 //
 #include <stdio.h>
+#ifdef _WIN32
+#define PING_CMD "ping -n 10 localhost"		// 'slow command' under windows
+#ifdef _MSC_VER
+#define popen _popen
+#define pclose _pclose
+#else /*_MSC_VER*/
+#include <unistd.h>				// non-MS win32 compilers (untested)
+#endif /*_MSC_VER*/
+#else
 #include <unistd.h>
+#define PING_CMD "ping -i 2 -c 10 localhost"	// 'slow command' under unix
+#endif
 #include <FL/Fl.H>
 #include <FL/Fl_Window.H>
 #include <FL/Fl_Multi_Browser.H>
 
-#define PING_CMD "ping -i 2 -c 10 localhost"	// 'slow command' under unix
 
 // GLOBALS
 FILE *G_fp = NULL;