Interop.RobotOM.dll for different Robot versions

[pedrocty2001343477]

Is there a difference between the Interop.dll files between different Robot versions? I've just installed version 2015 and while looking at the SDK I've noticed that two of the samples have Interop.dll files with different file sizes.
- RobotSDKSample_Reinforcement has an Interop.RobotOM.dll file that is 1492kb
- RobotSDKSample_Steel has an Interop.RobotOM.dll file that is 1464kb

Which is the more up-to-date code? And is there any difference to the .dll files to include the new features of 2015?

[Gazes]

As a workaround you can manually add a reference to robotom.tlb (typically located in "c:\Program Files\Autodesk\Autodesk Robot Structural Analysis Professional 2015\System\Exe\robotom.tlb"). This will create correct Interop.RobotOM.dll