When opening *.fws and *.fls files from Scene 4.8 in Navisworks Manage 2011 or 2012, you may receive an error message stating "Failed to load file via NoW64 (hr = 0x80004005). Error code: 32771"
As of November 2011, we do not have *.dll's for Navisworks 2011. The work-around is to export the files as .ptx and then read them into Navisworks.
For Navisworks 2012, Autodesk has released Service Pack 1 which has updated the updated *.dll's which resolve this issue. Service Pack 1 can be downloaded from Autodesks web site:
Keywords: error, Navisworks, 2011, 2012, fail, failed, NoW64, 0x80004005