StrongDC++ is described as 'Client for sharing files in Direct Connect network by using NMDC and ADC protocols. It is modification of program DC++ and it brings many news and features from other modification. Since DC++ is developed under GNU/GPL, you can download source and modify it' and is a Direct Connect client in the file sharing category. There are nine alternatives to StrongDC++ for a variety of platforms, including Windows, Linux, BSD, Mac and Haiku apps. The best StrongDC++ alternative is RetroShare, which is both free and Open Source. Other great apps like StrongDC++ are DC++, FlylinkDC++, EiskaltDC++ and ApexDC++.