if your looking for just a message to pop up that could say anything and only have an OK prompt then you could use the "net send" command..you would just need to know the "who" to send it too...
example
net send (pc name) "Your shorts are too tight!"
if you dont know the "who" to send to there are (at least for me and how were are set up) two options...
if in DOS you type SET with no parameters it will display all the enviroment variables that are currently defined..
for me i could go two ways here...
we have an Eniv var set up for login name %username%
and we have Eniv var set up for the pc name %computername%
if you have neither of these (or anything like it)
then you might be able to (somehow) parse out who the person running the command is by using the NET NAME command..
if you do figure out how, please post with your solution.
Hope this helps
chris castelein
Shive-Hattery
Cedar Rapids, IA