Starting A New Project From A "Blank / Empty Project"?

What is required to use the "My. (anything)" namespace? i am starting a new project from a "Blank / Empty Project" add a new class

Shared sub main()
my. (anything)
end sub

now, logic says that im missing a reference or import, i have include all the references from a new forms project, so should not have any issues with this. but no.con someone enlighten me on the "My" namespace and what reference is required to use it.