psexec Computer Trick

From my computer, I
can open a cmd console screen with a message on it on another computer using psexec. 
Here's how:

I need to already
have administrative privileges on the target computer.

psexec needs to be
installed on my computer.

I create a batch
file that looks like this: 
@echo OFF
echo Tell me if you got
this.
echo.
pause
del %0
(The last line is the batch file
"self-destruct" command.)

I open a command
window, and type  psexec \targetcomputernameorIP -i -c
"C:pathtofile.bat"

The -i switch runs
the process interactively with the logged on user.  The -c switch copies
the file to that computer before running it.