More info: http://www.specdiag.com/detroit-drumroll-file-editor.html
Detroit Drumroll File Encryptor/Decryptor v0.1
• Decrypt DDEC IV calibration files to txt or xml format;
• Modify parameter data, file expiration, engine number, VIN and etc.;
• Encrypt modified file;
• Program ECM with modified file by using DDRS or DDDE;
• Support Windows 2003/XP/Vista/7.
More info: http://www.specdiag.com/detroit-drumroll-file-editor.html