Someone in my company was sending a net send "Please, ignore this message." and then checking NBTSTAT to find a logged on user's computer. I did not like this. I did not want to send a net message and interrupt the person working to find their computer. I spent a lot of time trying to find another way. That is when I found NTNAME. I know it was originally made to keep people from logging on more than once. But, the side benifit is that I can find out where someone is logged on without bothering them.
Like I said, I am not putting this way down. I am sure that someday I will find a use for it. It just seems like a lot of extra work. While I am sure that there some situations where NTNAME will not work, I have not run into one yet.
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Kelly