Find out computer name given the username

Hi Experts,

I have got this script from the internet. I want to find out which computer a user is logged on to given the domain username of the person.
This script uses the net send command along with the nbtstat -c command to get the computer name and IP.
Can you please verify that it does so. I am not very good with scripting.
I am getting a compile error when I try and run this.
Thank you experts.

@echo off
if "%OS%" == "" goto syntax
if %1z == z? set goto syntax
 
 
if %1z == z set /p UN=Enter UserName: &goto main
set UN=%1
:main
net send "%UN%" "Finding your computername. Press OK - do NOT respond." >nul
if errorlevel == 1 goto error
 
nbtstat -c > %TEMP%\LOCATE.LOG
findstr /i /c:%UN% %TEMP%\LOCATE.LOG >%TEMP%\LOCATE2.LOG
FOR /F "tokens=3,4,5,6,7 delims=. " %%i in (%TEMP%\LOCATE2.LOG) do ping -a -n 1 -l 1 %%j.%%k.%%l.%%m >%TEMP%\LOCATE.LOG
FOR /F "eol=: tokens=2" %%a in (%TEMP%\LOCATE.LOG) do @echo %UN% is logged into %%a&goto end
Echo This does not report whether %UN% is logged into multiple workstations!
del %TEMP%\LOCATE*.LOG
goto end
 
:error
cls
echo Error: %UN% username not found
goto end
 
:syntax
echo Syntax %0 username
echo Must be run from Windows NT or Windows 2000
echo NT/2000 users located, Win9x only if winpopup loaded.
goto end
 
:end
pause

Select allOpen in new window