The tfsnifs.sys file is a component of the Drive Letter Access (DLA) application. Tfsnifs.sys can found in Sonic DLA, Veritas DLA and IBM DLA. DLA is a packet writing application which enables optical disc data storage devices to be used as floppy disks because its packet writing technology is designed for CDs and DVDs that uses UDF file system. In 2009, Roxio Burn has replaced the application DLA. DLA has been first developed by Veritas and then has been acquired by Sonic Solutions. DLA almost always comes with CD and DVD recording drives. PC systems such as Dell, HP, IBM, Sony and Toshiba have a pre-installed DLA. DLA is the standard OEM version for a branded drive and always available for download. Tfsnifs.sys allows the optical drive unit to write data in small packets so that the user can save, change, rename, delete and copy files into optical media, just like what a floppy drive does.

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