Aweber C++ software integration

Hi, Need someone to integrate an Aweber form into a Visual C++ source code, so that when the software/program runs, the first dialog box that appears is a box asking for an email address. If the user fills it in, then his email is passed onto the Aweber list. The software then continues to function normally. The user should have the option to cancel the email request box, and still be able to use the software normally. Thanks.