The arpa.dll file is a library file program known as Purity Scan. This program has the purpose of scanning the user PC for any hidden adult-related material and removes it. It copies itself in the Windows Startup folder and load at startup. It will also show users large pop-up ads while connected to the Internet. It is compatible for use in Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP operating systems. The pop-up advertisements usually displayed while the program is running. Authors of these applications often include additional code to deliver the advertisements. It can be viewed through the pop-up windows or through a bar appearing on the computer screen or through text links or in integrated results. The Purity scan is an adware program that carries actions such as going memory resident, downloading other adware programs, and displaying a great number of advertising pop-up windows.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. arpa.dll. is used by Purity Scan, If you shut down arpa.dll, it will likely start again at a later time either after you restart your computer or after an application start. To stop arpa.dll, permanently you need to uninstall the application that runs this process which in this case is Purity Scan, 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 arpa.dll

A process usually a part of an installed application such as Purity Scan, 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 arpa.dll. 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 arpa.dll, belongs to, in this case Purity Scan