In Windows 7 similar to previous versions of Windows, you can display a message comprising a title and some text for users attempting to log on to their computers. The message will appear before the interactive login screen. This may be used for legal reasons, for example, to warn users about the ramifications of misusing company information or to warn them that their actions may be audited.
Windows Event Viewer allows you to run a task when a specific event occurs. For instance, you could restart a service when an event is logged or display a message to notify you that an error has occurred! Let’s say you want to be notified when shadow copies fail to function. There are instances when automated shadow copies fail due to storage quotas that you may have set long time ago and you may want to know before the system automatically deletes the oldest shadow copy to make room for a new one!
Back in the days, the net send command-line tool used to be quite popular among systems administrators and let’s be fair, it used to run smoothly and fulfilled a purpose. Though, I have seen many instances where it was used to prank users with fake messages like ‘hi, the system has detected that you have a low IQ. Please consider upgrading for better performance’. Since Vista, Microsoft introduced the message (msg.exe) command-line tool instead, which like the net send worked like a charm. However, in Windows 7 the MSG command may fail to send a message and returns an ‘Error 5’ message.