What is mcps.dll?

Mcps.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if mcps.dll is a Windows system file or if it belongs to an application that you can trust.

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Mcps.dll file information

The process known as Media Catalog Proxy/Stub

belongs to software Microsoft Clip Organizer or Microsoft Office Professional Edition (version 2003) or Microsoft Office Professional or Microsoft Office Shared Setup or Microsoft Office Access Setup or Microsoft Office (version 2003 Web) or Microsoft Office Standard or Microsoft Office OneNote (version 2007)

by Microsoft (

Description: Mcps.dll is not essential for the Windows OS and causes relatively few problems. Mcps.dll is located in a subfolder of "C:\Program Files"—e.g. C:\Program Files\MICROS~2\Office10\. Known file sizes on Windows 10/8/7/XP are 103,256 bytes (54% of all occurrences), 96,824 bytes, 97,984 bytes, 91,552 bytes or 96,840 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The program is not visible. The mcps.dll file is certified by a trustworthy company. There is no detailed description of this service. It can change the behavior of other programs or manipulate other programs. Mcps.dll is not a Windows core file. Therefore the technical security rating is 57% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software publisher Microsoft provides direct support ( and update information ( You could uninstall the associated program (Start > Control Panel > Uninstall a Program > Media Catalog Proxy/Stub or Microsoft Office Groove MUI).

Recommended: Identify mcps.dll related errors

Important: Some malware camouflages itself as mcps.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the mcps.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Just software from the Voles
  Chris Heenan  
This file is needed for installation of the Clip Art Galleries of the Microsoft Photodraw 2000 when it is installed in Windows XP
  Jonathan Dyer   (further information)
Seems like it comes from Microsloth
  John Bartucz   (further information)
Media Catalog Proxy/Stub
  Special   (further information)

Rating chart

Summary: Average user rating of mcps.dll: based on 10 votes with 4 user comments. 8 users think mcps.dll is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous. One user thinks mcps.dll is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving mcps issues

A clean and tidy computer is the key requirement for avoiding problems with mcps. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the mcps.dll process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

mcps.dll [all]