Drive Letter Access Component is the service name of the Windows process dladresn.sys, a type of a driver file, and a part of the program Drive Letter Access, which is developed by Sonic Solutions. Drive Letter Access , also referred to as DLA, is a commercial packet writing software product intended for Microsoft Windows Operating Systems, but is already discontinued. What this program does is to allow all optical disc data storage device units to be used as the same as floppy disks. Therefore, DLA is basically a packet writing application for both CDs and DVDs that rely on the use of UDF file system. The driver file, dladresn.sys, is compatible with Microsoft Windows Operating Systems, by Microsoft Corporation, but only for certain versions, which are mostly older ones, and these are Windows Server 2003, Windows 2000, Windows NT, Windows ME, Windows 98, and Windows 95, but can also run in Windows XP.

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

A process usually a part of an installed application such as Drive Letter Access, 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 dladresn.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 dladresn.sys, belongs to, in this case Drive Letter Access