Question : Best FREE Visio Automated Network Drawing Tool?

A while ago Solar Winds put out a freebie "LAN Surveyor Express" which was quite good actually.  Feed it a subnet and off you go.  I wondered if folks had an opinion as to the best freeware for automating network diagram creation directly to or exportable to Visio.  Points goes to the one which seems coolest and is actually free and free of spyware.

Answer : Best FREE Visio Automated Network Drawing Tool?

I still use LAN Surveyor Express. Works just fine, but needs a lot of manual manipulation after scanning any network. It even works in Visio 2010.
I would also be interested in hearing about any other free applications.