Navistools 2014.2 and later versions are using Inno Setup. Execute Setup.exe and accept the default settings.

 

 

When Navistools is installed, program continues to conditionally postinstall Devart SQLite driver. If you haven't installed it before, please check Run dcsqlitefree

 

 

  

After installation start Navisworks in the usual way. You will find the installed programs in the Add-Ins Ribbon Tab.