Autodesk Registration Activation Error (0015.111)

Please, I need help, I have Windows 7 Ultimate Edition x64 and I allready installed Autocad 2014 and Autodesk Robot Structural Analysis 2014 standalone, but now I need to install Revit Structural 2014 and it’s dosen’t activate it always gives me this error “Registration Activation Error (0015.111)”. Any suggestions?
Answer #1
Forget it, I already found the Solution.
Answer #2
tell it everyone
files : adlmact.dll & adlmact_libFNP.dll
You just need to find the original version of this two files from the install file ( autocad for example: x64\acad\Program Files\Root\Common Files (64-bit) Folder\Autodesk Shared\AdLM\R7), copy them and overwrite to (C:\Program Files\Common Files\Autodesk Shared\AdLM\R7).
working for all 100%
LOCK [ SOLVED ]