Thank You.... I just upgraded my system to win7 64 and was pulling my hair out tryng to get this to work. I have two years of mod designing files built with 3dsmax9 and whould have hated to have to resort to using the "old" max. Your instructions worked perfectly. I have imported and exported previous 3dsmax9 nif's that I deveolped, with no problems. Your a life saver. :thumbsup: