I imported "with skeleton" and there are some green boxes "Dummy" that I can move and the mesh moves. They are named in the biped syntax "Bip01 L Finger02" that sounds a lot like bone names, I think we are good then unless I need skeleton.nif in the scene too. Proceeded with your settings, it crashes a little earlier in the progress bar but I think that means we are getting somewhere. I notice that despite being "NIF w/o Animation" the first thing it does is attempt to write a .KF file. I based the settings I were using earlier on an older thread of skinning advice http://grotto.moddersrealm.com/index.php?topic=5926.0 I also see the tutorials in this forum recommend CIV4 plugins, but they aren't working for my max version. I could probably try an older one but I would prefer if I can sort out making Niftools work. Thanks for your ideas, gonna import skeleton.nif and maybe attempt to clean the scene, then retry. edit: yeah, same crashes. Also, I hope it is correct that I have to import "with animation" yet "clear animation", or the skeleton explodes over the scene