I have a client who has recently added a Win 7 PC to an established XP Network. He initially had some issues accessing the Win 7 printer from an XP laptop but we resolved this by uninstalling a timed out mcafee firewall which was preventing the xp machine pinging the win 7 pc. The next problem was that the xp laptop could not be seen in the win 7 network map. The XP machine was SP3 so apparently does not require the LLTD fix and I eventually found KB913628 and turned off restrictanonymous. This allowed the machine to be seen but when clicked on win 7 alleged that it could not be accessed due to a naming issue, despite this, a few seconds later the shared printers and shared folders appeared and were fully accessible. Terriffic we thought!
As a final test I tried sharing an additional folder on the XP machine and this duly appeared as a shared folder when viewed from the 7 PC. All good, you might think, but when clicked on the new share proved to be inaccessible. I've been into sharing and shared it full access to everyone (no good) and also shared it full access to anonymous user (also no good).
The new share is fully accessible from another XP machine and various other folders have also failed to share properly to win 7.
A (possibly) unrelated issue is that remote desktop works perfectly well from the 7 machine to another XP machine but not to the laptop although the laptop does have "Allow users to connect remotely" enabled.
I had so many issues like this when Vista first appeared this feels like Groundhog Day!
Any pointers would be much appreciated.