What is ypager.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the ypager.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Ypager.exe file information

The process known as Yahoo! Messenger belongs to software Yahoo! Messenger or +345r+3+9549r5 by Yahoo! (

Description: Ypager.exe is not essential for Windows and will often cause problems. Ypager.exe is located in a subfolder of "C:\Program Files" (typically C:\Program Files\Yahoo!\Messenger\). Known file sizes on Windows 10/8/7/XP are 3,096,576 bytes (33% of all occurrences), 3,084,288 bytes and 6 more variants. 
The program has a visible window. It is not a Windows system file. The process can be removed using the Control Panel's Add\Remove programs applet. Ypager.exe is able to record keyboard inputs. The process listens for or sends data on open ports to a LAN or the Internet. The process starts upon Windows startup (see Registry key: Run). Ypager.exe is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 41% dangerous; however you should also read the user reviews.

Uninstalling this variant: The software vendor offers the option to do the following:
  1) uninstall the associated program (Start > Control Panel > Uninstall a Program > Yahoo! Messenger)
  2) turn to the software developer, Yahoo, for advice
  3) search for an update on the vendor’s website.

Recommended: Identify ypager.exe related errors

If ypager.exe is located in the C:\Windows\System32 folder, the security rating is 72% dangerous. The file size is 86,126 bytes. There is no information about the author of the file. The program is not visible. The ypager.exe file is located in the Windows folder, but it is not a Windows core file. The ypager.exe file is not a Windows core file. Ypager.exe is able to record keyboard and mouse inputs, monitor applications and manipulate other programs.

External information from Paul Collins:
There are different files with the same name:

Important: Some malware camouflages itself as ypager.exe. Therefore, you should check the ypager.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

blocking uninstalling programmes
  david edwards  
Users please use AVG Free basic protection, it's a trojan back door, please remove it! I will post info tomorrow
  Kyle Moore   (further information)
Depending on the process, it can be in your startup (start run msconfig startup) and be malicious, a keylogger. You can move it from there and disable it. Stuff like that is why I don't use Yahoo! messenger. It is always full of bugs that aren't updated.
  Captain Hooker  
yahoo messenger
need to no what to do to get on the net
Yahoo Messenger
Zona Alarm probably wants us to alert that Ypager.exe is able to get keyboard presses and mouse movement. Obviously that is essential for it to function. For those who are suspicious about it they can block it.
  Webmaster   (further information)
It is the exe for yahoo messenger. But if you have a good firewall you do not need to let it act as a server or accept connections from the net.
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of ypager.exe: based on 78 votes with 9 reviews. 30 users think ypager.exe is essential for Windows or an installed application. 4 users think it's probably harmless. 14 users think it's neither essential nor dangerous. 11 users suspect danger. 19 users think ypager.exe is dangerous and recommend removing it. 24 users don't grade ypager.exe ("not sure about it").

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Best practices for resolving ypager issues

A clean and tidy computer is the key requirement for avoiding problems with ypager. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the ypager.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

ypager.exe [all]