Change dll file name

[Zephyre]

Hello Frank and all,

I have implemented me new material code into ElasticPPcpp file of the example project (I have copied my code into classes without changing the name of classes of the file and now it's working). Now I want to change the name of dll file; These are the things I've done for changing the name:

1- I've changed name of ElasticPPcpp.cpp & ElasticPPcpp.h files to my desired name.
2- In C++ project from: Project properties|Configuration|Linker I've changed the name of output file.

Now when I run the project it produces the dll file with my desired name but when I use it in opensees, it gives the error that the element could not be found.
Is there any other steps I should take for changing the material name? Do I need to change the name of all classes from ElasticPPcpp to my desired name?
Thank you,