how does the .RGS file works

In the .rgs file, there are some registry info, and I want to know how does the info in .rgs file added into regetry?

I have a project AAA and it will generate the file AAA.DLL, and there is a file xxx.rgs which contains the registry info, and the AAA.DLL is built, then it will be deployed to another machine B, so I don't know how the registy info can be added on machine B, do I need register AAA.dll using regsvr32 command?