The patch doesn't work, believe me. This is caused by the updation. I had a similar issue with Revit.
every time autodesk updates a SP(Service pack), two files,(adlmact.dll & adlmact_libFNP.dll) locate in
C:\Programmi\Common Files\Autodesk Shared\AdLM\R7 would be updated,
So you just need to...