The file cdiport.sys is a Windows 2000 DDK driver from Paragon Software. The Windows Driver Kit (WDK), or driver development kit (DDK) is a set of programs and related files that are used to develop a new software or hardware driver to update an existing legacy application driver for an operating system. The DDKs are used by device manufacturers and software application developers, and typically includes source codes, sample drivers, a compiler, a debugging utility, other utilities, testing tools, and documentation. The process cdiport.sys from Paragon Software is a DDK that supports software or driver development in Windows 2000. Building a driver is a complicated process that includes thorough testing and debugging. The steps in building the driver include writing the code that is usually written in C or C++, testing and debugging the driver on a checked build, testing and debugging on a free build, fine-tuning the performance, and final testing of the newly developed driver using a free build.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. cdiport.sys. is used by Paragon Windows Driver Kit (WDK), If you shut down cdiport.sys, it will likely start again at a later time either after you restart your computer or after an application start. To stop cdiport.sys, permanently you need to uninstall the application that runs this process which in this case is Paragon Windows Driver Kit (WDK), from your system.

After uninstalling applications it is a good idea to scan you Windows registry for any left over traces of applications. Registry Reviver by ReviverSoft is a great tool for doing this.

The ReviverSoft experts have not yet reviewed cdiport.sys

A process usually a part of an installed application such as Paragon Windows Driver Kit (WDK), or your operating system that is responsible for running in functions of that application. Some application require that they have processes running all the time so they can do things such as check for updates or notify you when you get an instant message. Some poorly written applications have many processes that run that may not be required and take up valuable processing power within your computer.

We have not received any complaint about this process having higher than normal impact on PC performance. If you have had bad experiences with it please let us know in a comment below and we will investigate it further.

The first thing you should do if cdiport.sys. is causing errors on your computer is to run a Windows registry scan with Registry Reviver If you are still seeing errors after this you should uninstall the program that cdiport.sys, belongs to, in this case Paragon Windows Driver Kit (WDK)