What is the .LES File Extension?    |    Repair .LES File Errors    |    Scan for .LES File Extension Errors

Run a Free Scan to check for LES related errors.

What is the .LES File Extension?

.LES File Extension Description:

The file extension .les is associated with the Logitech Entertainment System game profiles, which are defined as system game profiles those functions similarly to a REG file used by the Microsoft Window registry. Personal Computer games that fall under the genre of First Person Shooter (FPS), Golf types, and role playing, are usually designed to use basic input devices (keyboard and mouse) that are definitely present in every computer system to function as game controllers. This type of game controller is acceptable but lacks the functionality of delivering to the player the type of experience that can be achieved by using gamepads or joysticks.

In this context, many game developers endorse various types of game controllers to allow the users to maximize the gaming potential. However, there are some games, which do not automatically recognize the presence of game controllers, and here is where the functionality of the .les file extension comes in. As a game profile, the file extension .les helps to enable the functionality of the game controller specific to the game being played, and not on the type of controller used.

Similar to how a registry key is added by an application to instruct the operating system on how to allow the program to behave; the file extension .les sends commands to the game software on how actions generated by the game controller must be treated. The file extension .les is specific for Logitech manufactured game controllers, which initialize the different buttons, found on the device that can be used by the player, and establishes the level of support for the hardware during game time.

A program called Mklesson, which generates HTML files using single input files that are commonly used for tutorial purposes, also uses the file extension .les. The .les file extension acts as a lesson file for the application, which is loaded by the application, and contains specific lessons to be tackled. There is a particular format to be followed by the .les file extension contents, which is an extended form of HTML that is read by the application, and changed to standard HTML for the user.

A .les file extension lesson begins with the Header, which contains the Tutor Name, Lesson Number, Author Name and Author Address. The Section Name follows the Header, and then by the tutorial questions with Choice Answers and an input field to record the user's Response. The generator will assume that the file extension .les defines two sections, and it will create a file with the name lessonXX, where XX corresponds to the lesson number defined in the Header section. It then appends the .les file extension. Since the file extension .les is converted to a standard HTML document, it can be easily opened and executed by any web browser.


Author: David A. Wheeler, Logitech Gaming Team
Author URL: http://lglwww.epfl.ch/Ada/Tutorials/Lovelace/lovelace.html
Related Applications: Lovelace, Mklesson, Logitech Profiler
Common Path: User Defined


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

Do you have errors with .LES files?

The General Cause of .LES files Errors:

Upon encountering errors with .LES files you are in all likelihood experiencing a critical Windows file system error - your error may be the outcome of corruption in your program registry and action is required to correct it right away to avoid further corruption to the file system. Risks include device damage, blue screen errors and fatal crashes.

.LES files Errors - Common Symptoms:

Typical symptoms with .LES files errors include slower personal computer speed, long software load times, failure opening documents, excessive suspensions in program functions, programs closes without displaying an error, screen freezing and applications 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

What is the .LES File Extension?    |    Repair .LES File Errors    |    How to Fix .LES File Extension Errors