Vista - That wasn't a train at the end of the tunnel!

http://www.microsoft.com/technet/net.../vista_fp.mspx

http://windowshelp.microsoft.com/Win...051033.mspx#E4

The two links above, which I found at this site, were a lifesaver to me.
Similiar to many other people here, I was installing a new PC with Windows
Vista (Premium) onto an existing small interoffice workgroup where all the
existing PC's are running Windows XP (Home & Pro).

Initially, with the help of the first URL, I was able to recognize all the
XP PC's, access their public folders, and access their printers. But for the
life of me I couldn't get them to see the new Windows Vista PC. After a lot
of post searching and tinkering around, I finally associated the problem with
the McAfee Antivirus that was pre-installed on the new PC and the UDP/TCP
configuration information that is under the heading "Using a Third-Party
Firewire" at the first URL [near the end of the web page].


The below fix applies to McAfee Anti-Virus v7.1
------------------------------------------------------
>Open McAfee
>In the display box click on INTERNET & NETWORK >Configure
>In the display box open "Firewall protection is enabled" >Advanced
>In the left column click on "Security Level" >Select "Grant Full Access" >Apply
>In the left column click on "Trusted & Banned IPs" >Check the line with your IP address ranges >Apply
>In the left column click on "System Services" >Check necessary UDP/TCP ports as per list for your condition >Apply

Note that with the UDP/TCP ports, the list generated by McAfee doesn't
really define whether it is UDP or TCP, so you are really selecting by port
number.


I hope that this helps someone and I really appreciate all the help others
have given me here!