DCPcrypt has finally been retired. I’ve been developing it since 1999 and it since 2007 (or so) it has been developing code rot. It was good while it worked but now there has come a point where I can’t guarantee that it will work correctly (or securely) under recent versions of Delphi.

For the curious, the code is still available below. However, I don’t recommend anyone to use it any more.