Distribution of Project Server DLL in VSTO deployment

Hi,

I have created a VSTO addin that reference to some of project server DLLs (ProjectServerServices.dll, Microsoft.Office.Project.Server.Library.dll, etc). When I install the VSTO on my development machine, the solution works fine, however when it is installed on another Windows 7 machine, the project server function fails which I believe is due to the unavailability of DLLs file that is being used. I try to copy over the DLL and perform regsvr32 function but receive error that the entry point DllRegisterServer was not found. By the way, I am using ProjectServer 2013.

Regards,
Woon Woon, Gan