Welcome to the PC Pitstop Process Library. We have an extensive list of the most common processes currently running on PCs. Use this library to inspect the safety of your running processes on a regular basis.

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Search For Processes

Process Name

  

Unknown Unknown
Safe Safe
User Optional User Optional
Unwanted Unwanted
Spyware / Adware Spyware / Adware
Virus Virus


yahoom~1.exe (Yahoo! Messenger)

This program has not been seen on any systems tested at PC Pitstop in the past week.


In addition to the file name, yahoom~1.exe, the following version information is used to identify the file. If the file does not match this information, it may be a different file. To ensure the file is absolutely correct, run a free and comprehensive scan.

Vendor contains:Yahoo! Inc.
Product contains:Yahoo! Messenger

To view version information with Windows Explorer, right-click the file and click Properties, Version.


Vendor or Distributor's Web Site

http://www.yahoo.com/


Detailed Description and/or Removal Instructions

http://messenger.yahoo.com/


Win Patrol

YAHOOM~1.EXE - Main executable of Yahoo! Messenger.

yahoom~1.exe  is a user invoked program and a normal part of PC operations. No action required.

PC Pitstop recommends WinPatrol Plus for monitoring all of the background activity on your PC. WinPatrol Plus provides an easy to understand descriptions of over 15,000 processes and programs.


MD5 hashes is the way that computers can define the uniqueness of a file. Anti malware vendors frequently use this technique to detect and clean malware. It is common for a program to have multiple MD5 hashes as the developers create newer versions of the program. For the program called yahoom~1.exe, we have detected more than 10 different MD5 hashes. Click on a hash to research the hash in Google.

Program Name MD5 Count
yahoom~1.exe> 10
MD5 Hashes
# MD5 Size
1 0x72e794091e951a322663a4bd5c10d058 4662776 bytes
2 0x59fa6b963456fc1a5fc50d094ef1e676 4687352 bytes
3 0x07d2a268a24d93ff33ffb8419322e370 4650488 bytes
4 0xde6c79144a6447ebccaf058ab4c182e9 4670704 bytes
5 0xab0a7b5a18505969cf2a64ce2c2b8a04 5036544 bytes
MD5 Hashes
# MD5 Size
6 0x4a868f58b89e8e69a053c96411beb5a5 4670704 bytes
7 0x1ee1e99bda2b913da87ef852e8d84fc2 4670968 bytes
8 0xbbdd88c962498dd34ec08b7c596e1817 4567040 bytes
9 0x22a4d80b39bbd80cd4abd1ee6758bfc8 5039104 bytes
10 0x4473538196da231d182296097ee3932f 4670704 bytes


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PC Pitstop is the undisputed leader in PC diagnostics. Our running process library is culled from our database of over 100 million PC diagnostics and scans.

To find the latest driver for your computer we recommend running our Free Driver Scan.

Find out how to make your computer faster by running our Free Performance Scan.

Tips from the PitCrew

Tips from the Pit Crew

Every process running on your computer takes up CPU cycles and valuable memory. For optimal PC performance and resource utilization, you should be aware of every process on your computer. PC Pitstop designed this process library to help you know which processes are worthwhile and others that slow system performance.

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Important Note

A file name alone may not be enough for positive identification. PC Pitstop's Overdrive tests and spyware scan use information such as the company name, product name, or install directory.

If you are unable to identify a file, ask about it in our forums after running our full tests.