What is coshelp.dll?

coshelp.dll is usually located in the 'C:\Program Files\Messenger\' folder.

Some of the anti-virus scanners at VirusTotal detected coshelp.dll.

If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.

VirusTotal report

35 of the 42 anti-virus programs at VirusTotal detected the coshelp.dll file. That's a 83% detection rate.

Scanner	Detection Name
AhnLab-V3	Win-Trojan/Cinmus.282624
AntiVir	TR/BHO.Gen
Avast	Win32:Rootkit-CN [Trj]
AVG	Generic4.ANUV
BitDefender	Application.Generic.370516
Commtouch	W32/Cinmus.N.gen!Eldorado
Comodo	UnclassifiedMalware
DrWeb	Trojan.Inject.48379
Emsisoft	Trojan.Win32.StartPage!IK
eSafe	Win32.TRBHO
eTrust-Vet	Win32/Cinmus.BE
F-Prot	W32/Cinmus.N.gen!Eldorado
F-Secure	Application.Generic.370516
Fortinet	W32/BHO.ALFJ!tr
GData	Application.Generic.370516
Ikarus	Trojan.Win32.StartPage
Jiangmin	Trojan/BHO.mmy
K7AntiVirus	Adware
Kaspersky	Trojan.Win32.BHO.alfj
McAfee	Adware-Cinmus.gen.u
McAfee-GW-Edition	Heuristic.BehavesLike.Win32.Worm.J
Microsoft	Trojan:Win32/Cinmus.K
NOD32	Win32/Adware.Cinmus.AA
Norman	W32/Suspicious_Gen2.DKPBX
nProtect	Trojan/W32.BHO.282624.K
Panda	Suspicious file
PCTools	Adware.Unknown!rem
Rising	Trojan.Win32.Generic.12443DDE
Symantec	Adware.Unknown
TheHacker	W32/BHO.alfj
TrendMicro	TROJ_ALFJ.A
TrendMicro-HouseCall	TROJ_ALFJ.A
VBA32	Trojan.BHO.alfj
VIPRE	Trojan.Win32.Generic!BT
VirusBuster	Trojan.BHO!qERNPan9l9Y

coshelp.dll removal instructions

The instructions below shows how to remove coshelp.dll with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the coshelp.dll file for removal, restart your computer and scan it again to verify that coshelp.dll has been successfully removed. Here are the removal instructions in more detail:

1. Download and install FreeFixer: http://www.freefixer.com/download.html
2. Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.

   
3. When the scan is finished, locate coshelp.dll in the scan result and tick the checkbox next to the coshelp.dll file. Do not check any other file for removal unless you are 100% sure you want to delete it. Tip: Press CTRL-F to open up FreeFixer's search dialog to quickly locate coshelp.dll in the scan result.

   

   

   C:\Program Files\Messenger\coshelp.dll

   
4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the coshelp.dll file.

   
5. Restart your computer.
6. Start FreeFixer and scan your computer again. If coshelp.dll still remains in the scan result, proceed with the next step. If coshelp.dll is gone from the scan result you're done.
7. If coshelp.dll still remains in the scan result, check its checkbox again in the scan result and click Fix.
8. Restart your computer.
9. Start FreeFixer and scan your computer again. Verify that coshelp.dll no longer appear in the scan result.

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