I'm using Sharepoint to post various ArcGIS Explorer maps I've created (site visit, jurisdictional determination, shoreline project etc). I also have layers I'm sharing on the same Sharepoint site. The layer files work nicely, the user clicks and the layer gets added right into ArcGIS Explorer. But my map files (nmfs) open in the browser, even though each computer is configured to open nmf file with AGX. I'm fairly certain it's because the nmf file is an xml, but how do I work around that? Any help greatly appreciated. ~Ellen Bryson