Is 'SQLCMD.EXE' the SQL Server 2008 executable to be added to a Firewall 'Inbound Rule' to allow remote access?

I would like to add a new Firewall 'Inbound Rule' to allow remote access bySQL Server 2008.    

SQL Server Management Studio shows two TCP/IP instances, both of which are Enabled. One uses port 1433 and the other uses ‘TCP Dynamic Ports’.  In  SQL Server, the server has ‘Allow remote connections to this server’ checked.

My Firewall allows port 1433 for the one TCP/IP instance. Since the other instance is dynamic, I would like to add a new Firewall 'Inbound Rule' to allow the SQL Server executable to run.

I’ve read that the SQL Server executable is commonly named SQLSERVR.EXE, but there is no such file on my laptop. I’m assuming the executable that needs to be added to the Firewall 'Inbound Rule'is SQLCMD.EXE (in the path C:\Program Files\Microsoft SQL Server\100\Tools\Binn). 

Can anyone please confirm this?  (I'm running Windows 7).  Thanks.