When attempting to install your Revit 2010 product, you might receive the following error and the installation rolls back:
1: 5 2 Failed to Load FNP_ACT_Installer.dll. 3: 126
This error is caused by a conflict in a Macrovision DLL file on the machine, most often seen after installing AutoCAD 2010. To resolve the error you can do the following:
- Download one of the following zip files, based on the Operating System that you are running:
32 bit Vista/XP: Download FNP_Act_Installer_32_bit
64 bit Vista/XP: Download FNP_Act_Installer_64_bit
- Extract the DLL file to C:\Program Files\Common Files\Autodesk Shared\AdLM\R1, overwriting any existing version.
After replacing the DLL you should be able to install.