modifying the rgs file for an addin 1235711

[Tamir]

Hi,
I have an addin (written in C++) with a setup project. At first, when I
started to learn about addins I created it as an "addin_test" project. Now I
wish to change the name of my project and the name of the DLL. The problem
comes into place when I try to change the file AddIn.rgs;
Changes in this file will cause the dll to be ignored i.e. the dll will not
be loaded.
More specifically,
if I change all appearances of "addin_test" (the original name of the
project) to be e.g. "modified_name" in the rgs file then the dll will not be
loaded!!!
Why is that and where can I learn more about it.

Best regards.