Left 4 Dead 2 Add-on Support
What is Left 4 Dead 2 Add-on Support?
This is an addon mod for the Left 4 Dead 2 video game. It requires the .Net framework 3.5.
Overview
Left 4 Dead 2 Add-on Support is a software program developed by Valve. 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 primary executable is named left4dead2.exe. The setup package generally installs about 97 files and is usually about 1.04 GB (1,111,451,237 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 58% of users of Left 4 Dead 2 Add-on Support come from the United States, it is also popular in United Kingdom and Germany.
Program details
URL: www.l4d.com
Help link: support.steampowered.com
Installation folder: C:\Program Files\steam\steamapps\zammysage22\left 4 dead 2 add-on support
Uninstaller: "C:\Program Files\Steam\steam.exe" steaC://uninstall/564
Estimated size: 1.04 GB
Files installed by Left 4 Dead 2 Add-on Support
| Program executable: | left4dead2.exe |
| Path: | C:\Program Files\Steam\steamapps\common\left 4 dead 2 Add-on Support\left4dead2.exe |
| MD5: | 5e2ea8672d84216d30b73c9351d6f148 |
Additional files:
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AppOverlay.dll - Steam Application Overlay Renderer (Steam Application Overlay)
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AppOverlay64.dll
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crashhandler.dll - Steam Crash Handler Library
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GameOverlayRenderer.dll - Steam Game Overlay Renderer
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GameOverlayRenderer64.dll
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Steam.dll
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Steam.exe - Steam Client Bootstrapper
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steamclient.dll - Steam
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steamclient64.dll
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steamerrorreporter.exe
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SteamUI.dll - SteamUI Dynamic Link Library
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tier0_s.dll - tier0_s Dynamic Link Library
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tier0_s64.dll
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vstdlib_s.dll - vstdlib_ s.dll
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vstdlib_s64.dll
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crashhandler64.dll
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steamerrorreporter64.exe
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GameOverlayUI.exe
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SDL2.dll - Simple DirectMedia Layer (SDL)
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streaming_client.exe
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libavresample-1.dll
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libavutil-53.dll
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video.dll
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avutil-51.dll
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libavcodec-55.dll
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libavformat-55.dll
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SteamTmp.exe
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addoninstaller.exe
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adminserver.dll
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binkw32.dll (by RAD Game Tools) - Bink and Smacker (RAD Video Tools)
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bsppack.dll
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bugreporter.dll
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bugreporter_public.dll
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chromehtml.dll
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cserhelper.dll - CSER Helper (Debug Helper Routines)
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d3dcompiler_46.dll (by Microsoft) - Microsoft® DirectX for Windows® (Direct3D HLSL Compiler)
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d3dcompiler_46_64.dll (by Microsoft)
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datacache.dll
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dbghelp.dll - Debugging Tools for Windows(R) (Windows Image Helper)
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engine.dll
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filesystem_stdio.dll
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filesystemopendialog.dll - SteamFileDialog Dynamic Link Library (SteamFileDialog DLL)
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gameui.dll
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GLSC.dll
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GreenLuma.dll (by Steam006) - GreenLuma 2.5.7
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icudt.dll (by The ICU Project) - International Components for Unicode (ICU Data DLL)
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icudt42.dll (by IBM and others)
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inputsystem.dll
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launcher.dll
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libavcodec-56.dll
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libavformat-56.dll
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libavresample-2.dll
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libavutil-52.dll
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libavutil-54.dll
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libcef.dll - Chromium Embedded Framework (CEF) Dynamic Link Library
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libmysql.dll
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libswscale-2.dll
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libswscale-3.dll
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materialsystem.dll
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mdllib.dll
Behaviors exhibited
4 Scheduled Tasks
- Steam.exe is scheduled as a task with the class '{CC29CBDA-1EA3-44CC-882F-AFADB7D351AB}' (runs on registration).
- steamTmp.exe is scheduled as a task with the class '{FE8D3954-66E7-48FE-AA3A-341A21A0BCE2}' (runs on registration).
- left4dead2.exe is scheduled as a task with the class '{C25FBF8A-FDB7-4ED2-8979-0258D941CF5C}' (runs on registration).
- GameOverlayUI.exe is scheduled as a task with the class '{98D22EE8-FBCE-4B0A-A638-4A27C81582F5}' (runs on registration).
Scheduled Task (Boot/Login)
- Steam.exe is automatically launched at startup through a scheduled task named Steam 2.
2 Startup Files (User Run)
- Steam.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'Steam' and executes as "C:\Program Files\Steam\steam.exe" -silent.
- SteamTmp.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'Steam' and executes as "C:\Program Files\Steam\Steam.exe" -silent.
Startup File (All Users Run)
- Steam.exe is loaded in the all users (HKLM) registry as a startup file name 'Steam' which loads as "C:\Program Files\Steam\steam.exe" -silent.
3 Windows Firewall Allowed Programs
- Steam.exe is added as a firewall exception for 'C:\Program\Valve\Steam\Steam.exe'.
- steamTmp.exe is added as a firewall exception for 'C:\Gamerelated\steamXP\Steam.exe'.
- left4dead2.exe is added as a firewall exception for 'C:\Jogos steam\SteamApps\common\Left 4 Dead 2\left4dead2.exe'.
Network connections
- Steam.exe connects to a96-7-41-160.deploy.akamaitechnologies.com (96.7.41.160 port 80).
- Steam.exe connects to 208.78.164.14 (port 27018).
- steam.exe connects to unknown.hwng.net (209.197.29.197 port 27017).
- Steam.exe connects to 65.119.212.110 (port 27019).
- Steam.exe connects to 146.66.155.9 (port 27017).
- steamTmp.exe connects to VALVE-CORPO.edge4.London2.Level3.net (212.187.192.162 port 80).
- steamTmp.exe connects to 68.142.91.36 (port 27017).
- SteamTmp.exe connects to cdn-178-79-196-253.pmo.llnw.net (178.79.196.253 port 80).
- SteamTmp.exe connects to 69.28.145.170 (port 27017).
- SteamTmp.exe connects to cm-04.lux.valve.net (146.66.152.15 port 27018).
Resource utilization averages
Show technical details
| Steam.exe |
| Memory: | 151.98 MB | |
| Total CPU: | 0.0003899617% | |
| Kernel CPU: | 0.00015490% | |
| User CPU: | 0.00023506% | |
| CPU cycles/sec: | 41,366,072 | |
| Switches/sec: | 374 | |
| I/O reads/min: | 3.07 MB | |
| I/O writes/min: | 1.78 MB | |
| GameOverlayUI.exe |
| Memory: | 21.35 MB | |
| Total CPU: | 0.0004747990% | |
| Kernel CPU: | 0.00032078% | |
| User CPU: | 0.00015402% | |
| CPU cycles/sec: | 16,959,400 | |
| I/O reads/min: | 35.45 KB | |
| I/O writes/min: | 3.3 KB | |
| SteamTmp.exe |
| Memory: | 230.39 MB | |
| Total CPU: | 0.0025027453% | |
| Kernel CPU: | 0.00142709% | |
| User CPU: | 0.00107566% | |
| CPU cycles/sec: | 28,069,388 | |
| Switches/sec: | 334 | |
| I/O reads/min: | 1.77 MB | |
| I/O writes/min: | 2.18 MB | |
How do I remove Left 4 Dead 2 Add-on Support?
You can uninstall Left 4 Dead 2 Add-on Support from your computer by using the Add/Remove Program feature in the Window's Control Panel.
- 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.
- When you find the program Left 4 Dead 2 Add-on Support, 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).
- Follow the prompts. A progress bar shows you how long it will take to remove Left 4 Dead 2 Add-on Support.
OS VERSIONS
Win 7 (SP1) 83%
Win Vista (SP1) 0%
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HOW IT STARTS
Automatically starts? Yes
(Found in the run registry)
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USER ACTIONS
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Uninstall it 4%
Keep it 96%
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Windows
Which Windows OS versions does it run on?
| Windows 7 |
85.35% |
|
| Windows 10 |
7.50% |
|
| Windows Vista |
5.28% |
|
| Windows XP |
1.87% |
|
Which OS releases does it run on? |
| Windows 7 Home Premium |
53.85% |
|
| Windows 7 Ultimate |
17.95% |
|
| Windows 7 Professional |
10.94% |
|
| Windows Vista Home Premiu... |
4.62% |
|
| Windows 10 Home |
2.56% |
|
| Microsoft Windows XP |
1.88% |
|
Geography
58.32% of installs come from the United States
Which countries install it?
| United States |
58.32% |
| United Kingdom |
7.34% |
| Germany |
4.46% |
| France |
3.93% |
| Canada |
3.54% |
| Australia |
2.88% |
| Japan |
2.10% |
| Netherlands |
1.83% |
| Sweden |
1.70% |
| Italy |
1.44% |
| Brazil |
1.18% |
| Finland |
1.18% |
| Spain |
0.92% |
| Belgium |
0.79% |
PC manufacturers
What PC manufacturers (OEMs) have it installed?
| Hewlett-Packard |
24.24% |
|
| Dell |
18.18% |
|
| GIGABYTE |
15.15% |
|
| Acer |
12.46% |
|
| ASUS |
12.12% |
|
| Alienware |
5.39% |
|
| Toshiba |
5.39% |
|
| Intel |
2.69% |
|
| Samsung |
2.36% |
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| Lenovo |
2.02% |
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Common models |
| HP Pavilion dv6 Notebook ... |
6.81% |
|
| Dell XPS 8300 |
4.19% |
|
| HP Pavilion dv7 Notebook ... |
4.19% |
|
| Alienware Alienware X51 |
3.66% |
|
| HP Pavilion g6 Notebook P... |
2.62% |
|
| THIRDWAVE CORPORATION Pri... |
2.62% |
|
About Valve
Valve is a video game development and digital distribution company through Steam best known for its critically acclaimed product, Half-Life.
Publisher URL: www.valvesoftware.com