Is there another way to export TreeNodes from AX2009 besides `TreeNode.treeNodeExport(filename)`?

Is there possibly a way of doing this based on the UtilElements table? 

EDIT
When calling treeNodeExport while connected with the .Net Business connector, the method .treeNodeExport fails. I was wondering if there is another way of exporting a TreeNode to an xpo file in order to work around this. This occurs mainly with the ProjectNodes.