What do I need to know to upgrade a complex application from C++Builder 2007 to 2010?

Question

My company\'s main application is mostly written in C++ (with some Delphi code and components). We are upgrading from RAD Studio 2007 to 2010 for the next release, starting

Answer 1

Is the cost of upgrading in line with the benefits?

Why not start a gradual upgrade where new components would be developed on the new platform. Integrate the new components to the old version via different interop helpers.

This approach was suggested to vb6 developers who were thinking about upgrading to vb.net.