DSL Networking Problem - Windows 98SE to Windows XP

I recently installed DSL. The modem is connected
to a Windows XP (Home Edition) machine and I
have a Windows '98SE machine networked to the
home portal via a wireless adapter.

My first problem is that the '98SE machine usually will
not boot up unless I unplug the wireless adapter from
the USB port. The machine then boots but I immediately
receive the following two Windows error messages.
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Message one:
C:\Program Files\BellSouth\WLAN Utility\SWLU.exe
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Message two:
The ADSLDPC.DLL file is linked to missing export
NTDLL.DLL:RtllnitUnicodeString.
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I have downloaded the NTDLL.DLL but am not sure
if it goes is C:\Windows\System. I tried placing the
file in that directory once before when I received the
same error messages during a software installation
and it did not solve the problem.

Is the RtllnitUnicodeString part of the registry?
I have run regedit and cannot find it.

I would appreciate any help anyone can provide.

Thanks,

hwy61visitor