@SteveRichter: unique_ptr is non-copyable by design as the unique_ptr owns the memory. If you want to transfer ownership, you need to std::move otherwise you'd have two unique_ptr's owning the same data (violating the uniqueness).
If you want to share ownership of memory between multiple smart pointers, you would use shared_ptr instead as its reference count is adjusted on copy/assignment, etc.
As for the std::vector of std::unique_ptr, this can be done with emplacement, this will construct the unique_ptr inside the vector itself with the raw pointer passed in. But i think with move semantics, std::vector<std::wstring> might be more appropriate.
I'm still figuring out all of the c++11 guidance myself, but maybe something like this:
std::wstring msg(L"The unique_ptr class supersedes auto_ptr");