--- a/runtime/plc_Win32_main.c	Mon Dec 10 15:53:55 2007 +0100
+++ b/runtime/plc_Win32_main.c	Mon Dec 10 17:05:36 2007 +0100
@@ -46,6 +46,11 @@
                 printf("WaitForSingleObject failed (%d)\n", GetLastError());
                 break;
             }
+            if (kbhit())
+            {
+                printf("Finishing\n");
+                break;
+            }
             timer_notify();
         }
     }