Hi @sarahhosni, apologies it seems the download link for the DLL libraries is missing.
What you can do is either grab a copy of VS2015 express (for free) and use NuGet to download the DLL and simple copy them
over to your 2012 project library folder or PM me with your personal email address and I can send you over a copy.
Regarding VC++, we don’t have these bindings available just yet, but are working on it for the future, so please stay tuned to Tobii Tech online.