I've got a small problem. On a P2P network (2 PC's) there is SQL Server 2005 express installed on a new Win 7 machine. The other PC now can't get at the SQL Server instance. As soon as I turn the firewall off then access is allowed - so it clearly is a firewall related problem.
What programs/services need to be allowed through the firewall so that the other PC can use the SQL Server based database on the new Win7 box ?