84,488,480 programs installed

Should I remove QT Lite?

What percent of users and experts removed it?
7% remove it93% keep it
Overall Sentiment
What do people think about it?
Be the first to rate (click star to rate)
How common is it?
Global Rank #6,065
United States Rank #7,628
Reach 0.0762%
Lifespan of installation (until removal)
< 24.02 days
708.53 days >
Average installed length: 372.28 days


4.1.0 100.00%

Other programs by Codecs.com

QT Lite 4.1.0

What is QT Lite?  (from Codecs.com)

QT Lite is a lightweight version of QuickTime. It contains only the essential components that are required for viewing QuickTime content in your favorite browser.


QT Lite 4.1.0 is a software program developed by Codecs.com. During setup, the program creates a startup registration point in Windows in order to automatically start when any user boots the PC. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with. The setup package generally installs about 12 files and is usually about 64.77 MB (67,918,153 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows 7 (SP1) and Windows 10. While about 34% of users of QT Lite come from the United States, it is also popular in France and Turkey.

Program detailsProgram details

URL: www.free-codecs.com
Installation folder: C:\Program Files\QT Lite\
Uninstaller: "C:\Program Files\QT Lite\unins000.exe"
Estimated size: 64.77 MB

Program filesFiles installed by QT Lite 4.1.0

  • QTPlugin.ocx (by Apple) - QuickTime Control (The QuickTime Control allows you to view a wide variety of multimedia content in web pages.)
  • PictureViewer.exe (by Apple) - QuickTime (PictureViewer)
  • QTOControl.dll - QuickTime Control
  • QTOLibrary.dll - QuickTime Library
  • QTTask.exe - QuickTime Task
  • QTUIPanelControl.dll - QuickTime UI Panel Control
  • QuickTimePlayer.dll - QuickTime Player
  • QuickTimePlayer.exe

Program behaviorsBehaviors exhibited

2 Scheduled Tasks
  • PictureViewer.exe is scheduled as a task with the class '{59B81E13-9FE0-4FDB-838B-883F7568B0EF}' (runs on registration).
  • QuickTimePlayer.exe is scheduled as a task with the class '{643A96A2-5B9A-4248-9806-936994C581B9}' (runs on registration).
Scheduled Task (Boot/Login)
  • QTTask.exe is automatically launched at startup through a scheduled task named QuickTime Task_Reg_HKLMWow6432Run.
2 Startup Files (User Run)
  • QTTask.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'QuickTime Task' and executes as "C:\Program Files\QuickTime\QTTask.exe" -atboottime.
  • QuickTimePlayer.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'QuickTime Player' and executes as C:\Program Files\QuickTime\QuickTimePlayer.exe.
Startup File (All Users Run)
  • QTTask.exe is loaded in the all users (HKLM) registry as a startup file name 'LexStart' which loads as "C:\Program Files\QuickTime\qttask.exe" -atboottime.
3 Windows Firewall Allowed Programs
  • QuickTimePlayer.exe is added as a firewall exception for 'C:\Program Files\QuickTime\QuickTimePlayer.exe'.
  • QTTask.exe is added as a firewall exception for 'C:\Program Files\QuickTime\qttask.exe'.
  • PictureViewer.exe is added as a firewall exception for 'C:\Program Files\QuickTime\PictureViewer.exe'.

Program resource utilizationResource utilization averages

Memory:11.94 MB
21.09 MB average
Total CPU:0.0006650126%
0.031193% average
Kernel CPU:0.00026166%
0.016088% average
User CPU:0.00040335%
0.015104% average
CPU cycles/sec:9,268,791
8,062,084 average
I/O reads/min:1.96 KB
435.61 KB average
Memory:3.31 MB
Total CPU:0.0003655486%
Kernel CPU:0.00027907%
User CPU:0.00008648%

How do I remove QT Lite?

You can uninstall QT Lite from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program QT Lite 4.1.0, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove QT Lite.

Win 7 (SP1) 60%
Win 7 0%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 7%
Keep it 93%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 64.27%
Windows 10 23.75%
Windows XP 9.12%
Windows Vista 2.86%
Which OS releases does it run on?
Windows 7 Ultimate 26.36%
Windows 7 Home Premium 19.38%
Windows 7 Professional 13.95%
Microsoft Windows XP 9.12%
Windows 10 Pro 4.76%
Windows 8.1 Pro 4.16%

Distribution by countryGeography

33.82% of installs come from the United States
Which countries install it?
  United States 33.82%
  France 4.41%
  Turkey 4.23%
  United Kingdom 3.86%
  Germany 2.60%
  Brazil 2.36%
  Argentina 2.36%
  Italy 2.36%
  Spain 2.29%
  Canada 2.29%
  Netherlands 2.17%
  Sweden 1.93%
  Poland 1.93%
  Saudi Arabia 1.57%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 20.78%
Hewlett-Packard 18.52%
Acer 15.52%
ASUS 14.52%
Toshiba 6.01%
Samsung 3.63%
Lenovo 3.38%
Intel 3.25%
American Megatrends 1.38%
Common models
ASUS All Series 8.97%
HP Pavilion g6 Notebook P... 4.81%
HP Pavilion dv6 Notebook ... 4.49%
Dell Inspiron N5010 3.53%
BIOSTAR Group G31D-M7 2.24%
HP Pavilion dv7 Notebook ... 2.24%


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