Hot Fix 61039 Problem & Resolution -------------------- Certain Z+F files containing point cloud data will cause Autodesk Navisworks to crash. The hot fix installer contains a new version of the Z+F DLL (www.zf-laser.com) used by Navisworks to read Z+F files. Instructions ------------ 1. Download the zfc_hotfix.exe file 2. To install the hot fix double-click on the downloaded file and follow the install instructions.