Steve Winograd has found the following possible explanation:
That error message is very misleading. The problem is probably that
an antivirus program has changed an obscure TCP/IP setting. Please
see this Microsoft Knowledge Base article for a likely solution,
specifying a value of 15 for IRPStackSize on the XP computer:
Antivirus Software May Cause Event ID 2011
http://support.microsoft.com/?scid=kb;en-us;177078
--
Richard G. Harper (MVP Win9x)
(E-Mail Removed)
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Help US help YOU ...
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"cbriz" <(E-Mail Removed)> wrote in message
news

A68b.3511$(E-Mail Removed)...
> I have two computers networked. One using Windows XP and the other using
> Windows 98SE. The XP is using a network card hardwired to a Dell True
> Mobile Wireless Router/4Port Switch. The router is connected to a dsl
> modem. The 98 Machine is networked using a wireless PCI card. I have no
> problems with my internet connection sharing and I can see both systems in
> My Network Places.
>
> Both computers use the MSHOME work group name and have individual computer
> names. I've shared the "C" drive on both computers and can see both shared
> drives on both computers. When I initially set up the networking, I used
the
> network setup wizard for the xp machine and made a floppy setup disk for
the
> 98 machine. The 98 machine would not complete the wizard. The message
read
>
> "Cannot Complete the Network Setup Wizard......The wizard cannot find your
> network Hardware" It then listed the possibilities,....."Network cards,
> Modems, Cables, Device Drivers".
>
> I manually set up the network on 98 machine which included: Client For MS
> Networks, File & Printer Sharing and Internet Protocol (TCP/IP) Now I can
> access files and folders on the 98 machine from the XP machine but I can't
> access anything on XP machine from the 98. When I try, I receive this
> message:
>
> \\downstairs\c downstairs is not accessible. Not enough memory is
> available. Quit Some Programs.
>
> Thank You All
> Carl
>
>