Steam - Group Chat Auto-Joiner

@echo off
mode con: cols=15 lines=1
title
::The default wait time for Steam startup is 15 seconds. You can change this value below (in milliseconds.)
set wait=15000
::Group 1
set array=%array% 000000000000000000
::Group 2
set array=%array% 111111111111111111
::Group 3
set array=%array% 222222222222222222
::etc.
tasklist /fi "ImageName eq Steam.exe"|find "Steam.exe">nul
if ErrorLevel 1 (
    start steam:
    ping -n 1 -w %wait% 192.0.2.0>nul
)
for %%a in (%array:~1%) do (
    start steam://friends/joinchat/%%a
    ping -n 1 -w 1 192.0.2.0>nul
)