Hi, MalwriX!
My name is Caio and I'll be happy to help you today =)
Could you please tell me where you saw that this "msg" command exists? And what should it do?
I'm asking this because all the commands that can be performed at CMD are shown when you type help and press Enter. msg, however, isn't listed there.
I hope this helps you! Please let me know if I can assist you more.
Best regards,
Caio G.
Independent Advisor