Thanks for the information!! I have found the problem and am very impressed
by the Windows Network Problem Solver at http://winhlp.com/wxnet.htm .
I probably would have never figuredthis one out without it! I hope this
helps the many others I have read recently in nuber of forums, newsgroups
etc,

The following quoted from http://winhlp.com/wxnet.htm :

The RestrictAnonymous registry value
You have both the following symptoms:

a.. You can ping the computer by IP and by name.
b.. When you type on another computer, replacing computername with the
name of the inaccessible computer:
net view \\computername

you get one of the various "Error 5" error messages, like "System error 5
has occurred. Access is denied" or "Error 5: You do not currently have
access to this file. ..." (However, other commands, like

net use Z: \\computername\sharename

or typing the full network path into Windows Explorer may work.)

This can be caused by a registry setting named RestrictAnonymous. Go to the
computer which you cannot access, start a registry editor and change the
following registry value.

HKEY_LOCAL_MACHINE
\SYSTEM
\CurrentControlSet
\Control
\Lsa
Value name: RestrictAnonymous
Value type: DWORD

If the value is 1 or even 2, change it to 0, reboot and retest. If the
problem is solved, leave the value at zero. If not, you can change it back
if you like.

On my system it was set to 1 which means annoymous users "cannot display
lists of domain user names, nor share names. Also, these users cannot view
security permissions, and they cannot use all of the features of Windows
Explorer, Local Users and Groups, and other programs that enumerate users or
shares."

I amnot sure whether something ha changed the value to a one recently, or
whether they way the value is interpreted by Vista has changed because of
either a Microsoft update or by my installing the Visual Studio 2008
Proffesional software package.

In either case it has solved the problem for me and I hope this info is of
some help to some of the many others experiencing similar problems.

A huge thanks for the info once again!

Martins





"Hans-Georg Michna" <hans-georgNoEmailPlease@michna.com> wrote in message
news:16spl4ljs22ganv53qdipp5mh2hrkltd7p@4ax.com...
> On Wed, 31 Dec 2008 20:02:12 -0800, Martins wrote:
>
>> My Vista Business system is sharing its internet connection with
>> 2
>>XP computers ( 1 Pro, the other home edition). I did not have a problem
>>until recently. The XP computers have no problem accessing the internet,
>>and I have installed and used a printer shared from the Vista system on
>>the
>>XP home edition computer. I cannot access or even see the shared folders
>>on
>>the Vista system. When either xp system expands My Network Places->Entire
>>Network->Microsoft Windows Network->workgroup all of the connected pcs
>>are
>>displayed, clicking on the +next to the Vista's systemname makes the +
>>disappear, and clicking on the name gets the following error message " \\
>>Martins-new-pc is not accessible. You might not have permission to use
>>this
>>network resource. Contact the administrator of this server to find out if
>>you have permissions. Access denied."
>>
>> Vista Network & Sharing Center has network listed as private with
>>Network discovery, file sharing, public folder sharing and printer sharing
>>all on. Password protected sharing and Media sharing are off. I have read
>>all of the troubleshooting help files and am at a loss. All shares give
>>'Everyone' permission to access.The xp computers were able to access Vista
>>shares about two weeks ago andbefore that with no problem. In the interim
>>I
>>have installed Visual Studio .Net 2008 plus recent automatic windows
>>updates. I feel that there is probably a simple solution since ICS and
>>printer sharing are working fine.
>
> Martins,
>
> first of all, do yourself a favor and buy a suitable router.
> Even the cheapest router is better than an
> Internet-connection-sharing computer, and a simple router is
> truly cheap.
>
> Apart from that, the basic information is at
> http://winhlp.com/node/179 . If that doesn't cut it, check
> http://winhlp.com/wxnet.htm .
>
> Hans-Georg
> --
> No mail, please.