ipconfig batch file

Hi!

One of my clients who’s running Windows 98 has been failed to get the ip address from DHCP server whenever he turn on his laptop, and I want him get ip address successfully again by only double clicking this simple batch file that I created incorrectly. Can anybody correct this batch file to work properly so I can help my clients to get on the network quickly without typing them manually one by one.
Thanks.
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@echo off
c:\winnt\system32\command.exe
ipconfig /release_all
ipconfig /renew_all
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