The mresp50.sys file is a component of software MRESP50 NDIS Protocol Driver or BT Wireless Connection Manager. Printing Communications Association, Incorporated (PCAUSA) has developed the system driver file. Network Driver Interface Specification (NDIS) is an application programming interface (API) for network interface cards (NICs). NDIS is a set of functions which simplifies the NIC hardware and acts as an interface for level 3 network protocol drivers and Media Access Control drivers. NDIS has been developed together by Microsoft and 3Com Corporation. PCAUSA, on the other hand, provides samples of advanced Microsoft Windows filter and protocol drivers and consulting services to those who uses applications like these. PCAUSA products are referenced Windows device drivers and companion user-mode components which is not included in the Microsoft Windows Driver Kit. NDIS Protocol Driver is one of the products which PCAUSA specializes on. This protocol driver uses the mresp50.sys file that makes the application functional even though it is just a sample of the Windows protocol driver.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. mresp50.sys. is used by PCAUSA Network Driver Interface Specification, If you shut down mresp50.sys, it will likely start again at a later time either after you restart your computer or after an application start. To stop mresp50.sys, permanently you need to uninstall the application that runs this process which in this case is PCAUSA Network Driver Interface Specification, 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 mresp50.sys

A process usually a part of an installed application such as PCAUSA Network Driver Interface Specification, 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 mresp50.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 mresp50.sys, belongs to, in this case PCAUSA Network Driver Interface Specification