Use anti-debugger check-up - checks the debugger presence. A debugger is any tool which provides reversing of sources during the application work. The examples of debuggers are SoftIce, OllyDbg, TWD etc.
If a debugger is found while the module is running, the execution process will be terminated.
Show Message before termination - if this option is enabled a reminder message will be shown in case a debugger is found. To edit the content of the message, press "Design Message". In case the option is disabled, the execution of the module will be terminated without notification.