Hello everyone! I'm writing an installer for my application that does a backup at a certain point. I'm writing AutoIT code since 3 years, and I really can't figure out why this line doesn't work. DirCopy(@ScriptDir, @ScriptDir & "\MWBackup", 1) I feel REALLY stupid, that's so simple! :S For some reason it creates the Directory but it doesn't copy files in it. Can you help me please? It works as intended with ANY other source folder.