How to Howto2
howto2.root is what's left of howto.root after nodetypes were added to the world outline.
How to install
1. Launch the OPML Editor.
2. Choose Tool Catalog from the Misc menu.
3. Click on the Install link next to howto2.root.
4. Click OK to all confirmation prompts.
At the top of the minute it will install a driver that renders nodes that have a type attribute value of "howto". That's all there is to it.