[host] fix faults caused by improper startup/shudown/restart ordering

host/platform/Windows/src/mousehook.c

@@ -146,6 +146,7 @@ void mouseHook_remove(void)
 {
   if (!mouseHook.event)
     return;
+
   SetEvent(mouseHook.event);
   WaitForSingleObject(mouseHook.thread, INFINITE);
   CloseHandle(mouseHook.thread);