Win98 clients cannot connect to SBS2003 anonymously

I have upgraded my network from SBS2000 to SBS2003 /so Windows 2000 Server to Windows Server 2003/.

In SBS2000 network all client are able connect anonymously (using user name, that does not exists on server, so they are logged as Guest) to network shares hosted on Windows 2000 Server.

When I switched to SBS2003 Windows 98 clients are not able to connect annonymously to network shares (using map network dirive). (Other clients as Windows 2000 and Windows XP can connect !!! and more Windows 95 clients can also connect !!!)
When I am logged to Windows98 as "user1" and user1 does not exists on server, I cannoct connect and error "Device does not exists on network" is returned !
When I am logged to Windows98 as "user2" and user2 exists on server, I can connect and all works fine. (and also when I am logged to Windows 98 as Guest with empty password, I can connect to network shares !!!)

I have trying all : Installing IE6SP1, installing dsclient.exe, disabling "Digital signing" in group policy, setting "Let everyone permission apply to anonymous users", ...

And one interesant point, when I install dsclient.exe on Windows 95, Windows 95 is no more able annonymously connect (before install is able)

Can anyone help me ... is there fix ?
Thanks very much
Laco.
.

Relevant Pages

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