Trick for CMD

 It seems like you're trying to use the "msg" command in the Command Prompt (cmd) to send a message. The correct syntax for the "msg" command is as follows:

```bash

msg username /server:servername /time:seconds "yourmessage"

```

Here's a breakdown of the components:

- `username`: The username of the user you want to send the message to.

- `/server:servername`: (Optional) Specifies the terminal server containing the user session to send the message to.

- `/time:seconds`: (Optional) Specifies the time, in seconds, that the message should be displayed on the user's screen.

- `"yourmessage"`: The actual message you want to send.

Here's an example:

```bash

msg john "Hello, John! How are you?"

```

Replace "john" with the actual username of the person you want to send the message to and adjust the message accordingly. Keep in mind that the "msg" command might have restrictions based on your system settings, and it might require administrative privileges.