What is companioncore.dll?

companioncore.dll is part of Windows Live Messenger Companion and developed by Microsoft Corporation according to the companioncore.dll version information.

companioncore.dll's description is "Windows Live Messenger Companion Core"

companioncore.dll is digitally signed by Microsoft Corporation.

companioncore.dll is usually located in the 'C:\Program Files (x86)\Windows Live\Companion\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about companioncore.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.

Vendor and version information [?]

The following is the available information on companioncore.dll:

PropertyValue
Product nameWindows Live Messenger Companion
Company nameMicrosoft Corporation
File descriptionWindows Live Messenger Companion Core
Internal namecompanioncore.dll
Original filenamecompanioncore.dll
Legal copyright© Microsoft Corporation. All rights reserved.
Product version15.4.3502.0922
File version15.4.3502.0922

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product nameWindows Live Messenger Companion
Company nameMicrosoft Corporation
File descriptionWindows Live Messenger Companion Core
Internal namecompanioncore.dll
Original filenamecompanioncore.dll
Legal copyright© Microsoft Corporation. All rights..
Product version15.4.3502.0922
File version15.4.3502.0922

Digital signatures [?]

companioncore.dll has a valid digital signature.

PropertyValue
Signer nameMicrosoft Corporation
Certificate issuer nameMicrosoft Code Signing PCA
Certificate serial number6101cf3e00000000000f

VirusTotal report

None of the 50 anti-virus programs at VirusTotal detected the companioncore.dll file.

None of the 50 anti-virus programs detected the companioncore.dll file.

Folder name variants

companioncore.dll may also be located in other folders than C:\Program Files (x86)\Windows Live\Companion\. The most common variants are listed below:

Hashes [?]

PropertyValue
MD5093796100ba5f40f873fbcdc2a6c5baa
SHA256a1b340641b5025295131a99f2ae4d416c1e15b527e023e88a591f2b95dfeb901

What will you do with the file?

To help other users, please let us know what you will do with the file:



What did other users do?

The poll result listed below shows what users chose to do with the file. 22% have voted for removal. Based on votes from 9 users.

User vote results: There were 2 votes to remove and 7 votes to keep

Malware or legitimate?

If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.

Please select the option that best describe your thoughts on the information provided on this web page


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Comments

Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.

I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.

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