The Blender (2.5x) plug-in does not work after Blender 2.65A (last working version).
Blender 2.66-2.67B will allow for installation, but the radio button to activate the add-on is not clickable.
Blender 2.68-2.68A will allow for installation, but throws an error when activating:
Traceback (most recent call last):
File "/Applications/Blender/blender.app/Contents/MacOS/2.68/scripts/modules/addon_utils.py", line 294, in enable mod = __import__(module_name)
File "~/Library/Application Support/Blender/2.68/scripts/addons/dirsig_utils.py", line 1147, in <module> def import_dirsig_obj(filename, scn=bpy.context.scene):
AttributeError: '_RestrictContext' object has no attribute 'scene'
I think Mike and/or Chris was looking for updates to the plugins for the newer versions of Blender, too.
Andy Scott sent me an updated plugin that works on my 2.62 build just fine. We will bundle it into the 4.5.2 release.