In tip 660, we used batch files to NET SEND to multiple users. To NET SEND to a group, we can use the public domain SHOWMBRS program and batch SNDGRP.

Syntax:  SNDGRP "DomainName\GroupName" "message"

Sample: SNDGRP "JSI\Accounts Payable" "Don't forget Friday's check run."

SNDGRP.bat contains:

@echo off
setlocal
If %1
"" goto syntax
If %2
"" goto syntax
set group=%1
set message=%2
set work=#####%message%#####
set work=%work:#####"=%
set message=%work:"#####=%
set message=%message:#####=%
for /f "tokens=1* delims=:" %%i in ('time /t') do set HH=%%i&set MM=%%j
set $tok=1-3
for /f "tokens=1 delims=.:/-, " %%u in ('date /t') do set $d1=%%u
if "%$d1:~0,1%" GTR "9" set $tok=2-4
for /f "tokens=%$tok% delims=.:/-, " %%u in ('date /t') do (
 for /f "skip=1 tokens=2-4 delims=/-,()." %%x in ('echo.^|date') do (
    set %%x=%%u
    set %%y=%%v
    set %%z=%%w
    set $d1=
    set $tok=))
set TDYY=%yy%
set TDMM=%mm%
set TDDD=%dd%
set log=%temp%\sg%TDYY%%TDMM%%TDDD%.%HH%%MM%
if exist %log% del /q %log%
@echo sndgrp - %group% - %message%
set group=%1
set message=%2
for /f "Skip=2 Tokens=* Delims= " %%i in ('showmbrs %group%') do call :msg "%%i"
for /f "Tokens=*" %%i in ('type %log%') do set line=%%i&call :who 
del /q %log%
endlocal
goto :EOF
:syntax
@echo Syntax: SNDGRP "Group Name" "message"
endlocal
goto :EOF
:who
if /i "%line:~0,28%" EQU "The message was successfully" @echo %line%
goto :EOF
:msg
set name=%1
net send %name% %message% >> %log% 2>>&1