Hello Everyone!!!
I have created the VSTO Addin, now This addin works fine with the project 2013 on premise environment. Now on load we have checked the application version = ("15") otherwise addin should not visible.
Mean AddIn will only work with 2013 version. Now when we are connecting with project online environement. this ADdin should not work.
how to check we are connected to online and premise environment from application object.