Called by the service name RealNetworks Virtual Path Manager, the process termed as mcstrm.sys, which is a driver file, is a component of the program RealNetworks Virtual Path Manager, version 32-bit, which is developed by RealNetworks. When the software product is downloaded onto the computer system, the mcstrm.sys, file is also installed, and registers itself into the Windows registry, stores on a folder location, usually in C:\Program Files, or C:\Documents and Settings, and automatically run in the background. Other than that, mcstrm.sys is a Windows file process, and is certainly compatible with Microsoft Windows Operating Systems, which include popular later versions, such as Windows 8, Windows 7, Windows XP, Windows Vista, Windows Server 2003, Windows 2000, Windows NT, and Windows ME. Whichever Windows OS is pre-installed, mcstrm.sys needs to remain active and must not be terminated, stopped or deleted, unless it causes problems that affect the performance of the system.

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

A process usually a part of an installed application such as RealNetworks Virtual Path Manager, 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 mcstrm.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 mcstrm.sys, belongs to, in this case RealNetworks Virtual Path Manager