A ddp file extension is related to the Dinkey Dongle, a hardware key for USB port used to protect software against piracy.
.DDP file extension - DDAdd Dinkey Dongle parameter
What is ddp file? How to open ddp files?
File type specification:
The ddp file extension is associated with the Dinkey Dongle, an USB hardware key (dongle) that allows programmers to prevents illegal copying of their software.
The ddp file stores parameters (settings) of Dinkey Dongle.
The default software associated to open ddp file:
DDAdd 
(obsolete software)
Company or developer:
Microcosm Ltd.
DDAdd a tool for add protection to your software and program the security dongle.
List of software applications associated to the .ddp file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open ddp file, edit ddp file, convert ddp file, view ddp file, play ddp file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting ddp files.
Settings file type for software that use ddp file - DDAdd Dinkey Dongle parameter
Programs supporting the exension ddp on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about DDAdd for settings ddp file action.
Microsoft Windows:
DDAdd (obsolete/discontinued)
