84,488,480 programs installed

Should I remove UltraVNC?

What percent of users and experts removed it?
9% remove it91% 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 #8,769
United States Rank #9,529
Reach 0.0441%
Lifespan of installation (until removal)
< 26.88 days
792.97 days >
Average installed length: 416.65 days


VersionDistribution 100.00%



UltraVNC is a software program developed by UltraVNC. During setup, the program creates a startup registration point in Windows in order to automatically start when any user boots the PC. Upon being installed, the software adds a Windows Service which is designed to run continuously in the background. Manually stopping the service has been seen to cause the program to stop functing properly. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. 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 winvnc.exe. The setup package generally installs about 39 files and is usually about 5.07 MB (5,314,801 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows 7 (SP1) and Windows XP. While about 39% of users of UltraVNC come from the United States, it is also popular in Brazil and Italy.

Program detailsProgram details

URL: www.uvnc.com
Help link: forum.ultravnc.info
Installation folder: C:\Program Files\UltraVNC\
Uninstaller: "C:\Program Files\UltraVNC\unins000.exe"
Estimated size: 5.07 MB

Program filesFiles installed by UltraVNC

Program executable:winvnc.exe
VNC server for X64/win32
Path:C:\Program Files\UltraVNC\winvnc.exe
Additional files:
  • workgrpdomnt4.dll - UltraVNC workgrpdomnt4 (MS-Logon I for UltraVNC)
  • ldapauthnt4.dll - UltraVNC ldapAuthnt4
  • ldapauth9x.dll - UltraVNC ldapAuth9x
  • MSLogonACL.exe - UltraVNC MSLogonACL (MSLogonACL)
  • vnchooks.dll - UltraVNC - VNCHooks (VNC hooks DLL for Win32)
  • authadmin.dll - UltraVNC authadmin
  • vncviewer.exe - UltraVNC VNCViewer (VNCViewer)
  • vncviewer_tab.exe
  • ldapauth.dll - UltraVNC ldapAuth
  • testauth.exe - UltraVNC testauth
  • authSSP.dll - UltraVNC authSSP (MS-Logon II for UltraVNC)
  • logging.dll - UltraVNC logging (Logging for UltraVNC MS-Logon)
  • vnclang_server.dll
  • winvnc1p.exe - UltraVNC (VNC server for Win32)
  • unzip32.dll (by Info-ZIP) - Info-ZIP's UnZip Windows DLL (Info-ZIP's UnZip DLL for Win32)
  • uvnc_settings.exe (by uvnc bvba) - uvnc_set Application
  • cad.exe (by uvnc bvba) - cad Application
  • zip32.dll (by Info-ZIP) - Info-ZIP's WiZ (Info-ZIP's Zip dll)
  • unins000.exe - Inno Setup (Setup/Uninstall)
  • SCHook.dll - SC Hook
  • logmessages.dll

Program behaviorsBehaviors exhibited

2 Scheduled Tasks
  • vncviewer.exe is scheduled as a task with the class '{E3E6683C-ED47-444B-AC5F-01F9C036530D}' (runs on registration).
  • winvnc.exe is scheduled as a task with the class '{595232BA-31E2-4B2D-A30E-112F001E9354}' (runs on registration).
  • winvnc.exe runs as a service named 'VNC Server' (winvnc).
Startup File (User Run)
  • winvnc.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'VNC server for X64/win32' and executes as C:\Program Files\UltraVNC\winvnc.exe.
Startup File (All Users Run)
  • winvnc.exe is loaded in the all users (HKLM) registry as a startup file name 'WinVNC' which loads as "C:\Program Files\UltraVNC\WinVNC.exe" -servicehelper.
3 Windows Firewall Allowed Programs
  • vncviewer.exe is added as a firewall exception for 'C:\Documents and Settings\user\Application Data\CrossLoop\vncviewer.exe'.
  • winvnc.exe is added as a firewall exception for 'C:\Program Files\ultravnc\winvnc.exC:*:EnableC:Ultra VNC'.
  • MSLogonACL.exe is added as a firewall exception for '%ProgramFiles%\UltraVNC\MSLogonACL.exC:,'.

How do I remove UltraVNC?

You can uninstall UltraVNC 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 UltraVNC, 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 UltraVNC.

Win 7 (SP1) 71%
Win 7 0%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 9%
Keep it 91%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 77.22%
Windows XP 10.24%
Windows 10 7.83%
Windows Vista 4.14%
Windows Server 2003 0.58%
Which OS releases does it run on?
Windows 7 Professional 42.15%
Windows 7 Home Premium 14.43%
Windows 7 Ultimate 11.55%
Microsoft Windows XP 10.16%
Windows 7 Enterprise 7.39%
Windows Vista Home Premiu... 2.19%

Distribution by countryGeography

38.82% of installs come from the United States
Which countries install it?
  United States 38.82%
  Brazil 9.06%
  Italy 6.80%
  France 6.40%
  United Kingdom 4.33%
  Germany 3.94%
  Taiwan 2.27%
  Spain 2.07%
  Australia 1.97%
  India 1.18%
  Belgium 1.08%
  Japan 1.08%
  Mexico 0.99%
  Israel 0.99%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 42.00%
Hewlett-Packard 26.60%
Acer 12.00%
ASUS 5.80%
Intel 2.00%
Sahara 1.40%
American Megatrends 1.00%
Apple 1.00%
Lenovo 1.00%
Toshiba 0.80%
Common models
Dell OptiPlex 780 3.89%
Dell OptiPlex 390 2.83%
Dell Latitude E6410 2.12%
Dell Latitude E6510 2.12%
Dell Precision WorkStatio... 2.12%
HP Compaq 8200 Elite CMT ... 2.12%


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