What is the .MCI File Extension?    |    Scan for .MCI File Extension Errors    |    How to Fix .MCI File Extension Errors

Run a Free Scan to check for MCI related errors.

What is the .MCI File Extension?

.MCI File Extension Description:

In order to properly control media devices in the Windows and OS/2 operating systems, Microsoft and IBM had created the file extension MCI, which is actually named such for Media Control Interface. Thus, the basic function of the files with the .mci file extension is to provide a device driver. More so, files with the .mci file extension are focused on the functionality of devices such as the audio controllers and CD-ROM players.

Through the use of the file extension MCI, it has become simpler to write n actual program that has the capability to play a huge range of related media files as well as to record sounds by passing these commands like strings. The files with the .mci file extension uses certain relations explained in the Windows registry or the specific Media Control Interface section of the SYSTEM.INI file.

The advantage of using the file extension MCI, which is also considered as a high-level Application Programming Interface (API), is that the commands of the files with the .mci file extension can be sent over either from the programming language or from the scripting language. Examples of commands from the file extension MCI are the mciSendString and mciSendCommand.

There are four parts that encompass the interface used by the file extension MCI. These parts include: CDAudio, AVIVideo, Sequencer, and WaveAudio. Each of the device or part included within the MCI file extension has the capability to play specific media file formats, e.g. CDAudio for CD tracks, and AVIVideo for AVI files.

In order to play a type of media, this media must first be initialized through the use of the commands available from the files with the .mci file extension. These actual commands are then subdivided into assigned categories and the following is a list of some of the commands:

* Basic Commands

* System Commands

* Extended Commands

* Required Commands

Author: Microsoft
Author URL: http://www.microsoft.com/
Related Applications: Windows and OS/2 operating system
Common Path: N/A


Run a Free Scan to check for MCI related errors & to optimize PC performance.

Do you have errors with .MCI files?

The General Cause of .MCI files Errors to Occur:

A typical and frequent reason for .MCI files errors is failure in the Windows registry - cleaning is needed to avoid more damage in other applications and/or system devices. Experiencing these errors puts your computer in danger for fatal crashes, blue screen errors and even device failure.

Symptoms of .MCI files Errors:

Typical symptoms with .MCI files errors include reduced personal computer performance, extended program start up speed, failure loading documents, extended breaks in application procedures, applications ends without an error message, screen freezing and programs crash.

Helpful Tools

The following products are free to try. We have found them to be of the highest quality and value. They have been extremely useful in our own pc troubleshooting and maintainance and we highly recommend trying them out for yourself.

Anti-Malware Pro

With a lightning fast free scan and the largest authentic spyware detection database we have seen, Anti-Malware Pro finds and removes threats to your PC stability and security. Download Anti-Malware Pro


DriverFinder will scan your system for driver and software updates. Its easy to use interface makes keeping your drivers updated quick and simple. They will even send you an email notification when new driver updates are available for your system! It doesn't get any more convenient than this. Download DriverFinder

Browse File Extensions by Name:

Is your File Extension missing?

Help us to make errorDecoder.com the best resource we possibly can by submitting you very own file extension details. If you have detailed information on any file extensions please let us know by visiting the following link.

Submit File Details Form

Scan for .MCI File Extension Errors    |    Repair .MCI File Errors    |    How to Fix .MCI File Extension Errors