companioncore.dll
Windows Live Messenger Companion by Microsoft Corporation (Signed)
Overview
There are 4 versions of companioncore.dll in the wild, the latest version being 15.4.3555.0308. It is integrated as a plugin to Internet Explorer as a Browser Helper Object, often without any obvious user interface, and will load for each instance of IE. The average file size is about 384.38 KB. The file is a digitally signed and issued to Microsoft Corporation by Microsoft Corporation.
What is companioncore.dll?
Windows Live Messenger (formerly named MSN Messenger) is an instant messaging client part of Microsoft's Windows Live. Windows Live Messenger uses the Microsoft Notification Protocol (MSNP) over TCP (and optionally over HTTP to deal with proxies) to connect to Microsoft Messenger service.
 Details
|
| File name: | companioncore.dll |
| Publisher: | Microsoft Corporation |
| Product name: | Windows Live Messenger Companion |
| Description: | Windows Live Messenger Companion Core |
| Typical file path: | C:\Program Files\windows live\companion\companioncore.dll |
| Certificate |
| Issued to: | Microsoft Corporation |
| Authority (CA): | Microsoft Corporation |
Programs installed in
(Note, the programs listed below are for all versions of Windows Live Messenger Companion.)
Windows Live Essentials is a suite of freeware applications by Microsoft that aims to offer integrated and bundled e-mail, instant messaging, photo-sharing, blog publishing, and security services. Ess...
Windows Live "is a way to extend the Windows user experience". Windows Vista provides a link in its user interface to download Windows Live Messenger, and Windows 7 saw the removal of applications suc...
Windows Live Messenger Companion was an add-in for Windows Internet Explorer that detects when a user is on a website that one of their friends has shared content from and surfaces that update so that...
Behaviors
(Note, the behaviors below are for all versions of companioncore.dll, select a unique version for details.)
Internet Explorer Browser Helper Object
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects'
- BHO CLSID: {9FDDE16B-836F-4806-AB1F-1455CBEFF289}
Internet Explorer extensions
- CLSID: {0000036B-C524-4050-81A0-243669A86B9F}
All file variations of companioncore.dll
Distribution by Windows OS
| OS version | distribution |
| Windows 7 Home Premium |
42.25% |
|
| Windows 7 Ultimate |
18.25% |
|
| Windows Vista Home Premium |
18.25% |
|
| Windows 7 Professional |
6.25% |
|
| Windows Vista Home Basic |
4.00% |
|
| Windows 8 Pro |
3.50% |
|
| Windows 8 Pro with Media Center |
2.50% |
|
| Windows 7 Home Basic |
1.75% |
|
| Windows Vista Ultimate |
1.25% |
|
| Windows 7 Starter |
0.75% |
|
| Windows 7 Home Premium N |
0.50% |
|
| Windows 7 Enterprise |
0.50% |
|
| Windows Vista Business |
0.25% |
|
Distribution by country
United States installs about 41.75% of Windows Live Messenger Companion.
Distribution by PC manufacturer
| PC Manufacturer | distribution |
| Hewlett-Packard |
23.41% |
|
| Dell |
19.65% |
|
| Toshiba |
17.92% |
|
| Sony |
10.98% |
|
| Acer |
8.67% |
|
| ASUS |
7.51% |
|
| Samsung |
3.18% |
|
| GIGABYTE |
1.73% |
|
| NEC |
1.16% |
|
| American Megatrends |
1.16% |
|
| Lenovo |
1.16% |
|
| Medion |
1.16% |
|
| Gateway |
1.16% |
|
| Sahara |
0.58% |
|
| Packard Bell |
0.58% |
|
