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What is Communicator.exe?

Part of Microsoft Office Communicator 2005 by Microsoft

What is it?

Microsoft Office Communicator is an instant messaging client for Microsoft Exchange Server. Office Communicator is enterprise software; unlike Windows Live Messenger, they have a different feature set that is targeted toward corporate environments.
Description of communicator.exe from Microsoft
Office Communicator is a unified communications application that helps end users be more productive by enabling them to communicate and collaborate easily with others in different locations or time zones using a range of different communication options, including instant messaging (IM), voice, desktop sharing and video. Integration with programs across the Microsoft Office system — including Word, Excel, PowerPoint, OneNote, Groove, and SharePoint — gives end users many different ways to communicate directly from the context of their task.
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How does communicator.exe run?

Process - Communicator.exe is an instance of a running program. This 32-bit program executes with the privileges as the currently logged in user account. Communicator.exe is executed by the process explorer.exe (Windows Explorer by Microsoft).

How does communicator.exe start?

Startup files (user) run - Communicator.exe is registered with the run identifier 'COMMUNICATOR' and the execution command '"C:\Program Files\Microsoft Office Communicator\Communicator.exe" /background' in the Windows registry HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run. Run keys are startup registry keys that are used to launch an application automatically when a user logs into Windows.


What is the community is seeing?What is the community is doing?
About 0.1% of all Boost users have the communicator.exe process running.Of the 0.1% of communicator.exe users, 25.0% have disabled it.
How resource intensive is Communicator.exe?
Comparison based on the average resource utilization across all programs.
     0.00000030% CPU3.0%
Average CPU utilization across all programs is 0.00001%.
10.52 MB RAM48.8%
Average private memory utilization across all programs is 21.53 MB.
              40 GDI objects26.7%
Average number of GUI GDI and USER objects for all programs is 150.
Typical file (disk image) location:
C:\Program Files\microsoft office communicator\communicator.exe

What modules are loaded?

A module is a dynamic link library (DLL) or an executable file that is loaded into the process. Below is a list of non-system modules that are loaded by Microsoft Office Communicator 2005.

What else is related?

What Windows OS versions does this run on?

Windows XP Professional (5.1.2600.131072)

About Microsoft Corporation

Microsoft, founded in 1975 by Bill Gates and Paul Allen, is a veteran software company, best known for its Microsoft Windows operating system and the Microsoft More...
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File details

File name: Communicator.exe
Publisher: Microsoft Corporation (verified)
Name: Microsoft Office Communicator 2005
Description: Microsoft Office Communicator 2005
Version: 1.0.559.115 (RTC Version 4.3.5371.0) built by: lcs_se_istanbul
Product version: 1.0.559.115
Size: 3.98 MB
Original file name: communicator.exe

Digital certificate

Certificate authority: Microsoft Corporation
Effective date: 1/5/2005
Expiration date: 4/5/2006

Resource utilization

CPU utilization averages
Total CPU: 0.0000006864%
Privileged CPU: 0.0000003846%
User CPU: 0.00000030184751%
Total CPU time: 781 ms
Total CPU time /min: 0 ms
Privileged CPU time: 437.5 ms
Privileged CPU time /min: 0 ms
User CPU time: 343.75 ms
User CPU time /min: 0 ms
Memory utilization averages
Committed memory: 107.48 MB
Peak committed memory: 108.07 MB
Paged memory: 10.52 MB
Peak paged memory: 10.59 MB
Paged system memory: 185.71 KB
Non-paged system memory: 15.48 KB
Working set memory: 12.36 MB
Peak working set memory: 12.4 MB
Min working set memory: 12.36 MB
Private memory: 10.52 MB
Page faults: 6,317
Page faults /min: 0
Process I/O averages
Total read operations: 609
Total read transfer: 671.17 KB
Total write operations: 83
Total write transfer: 294.34 KB
Total other operations: 5,378
Total other transfer: 477.2 KB
GUI Object Averages
GDI objects: 40
USER objects: 39
Handle count average: 686
Thread count average: 15

Process details

Runs as (owner): User
Windows platform: 32-bit
System Tray: Yes
Parent Process
Child Process
Process Command
"C:\Program Files\Microsoft Office Communicator\Communicator.exe" /background

Startup files (user) run details

Command: "C:\Program Files\Microsoft Office Communicator\Communicator.exe" /background

Image hashes

MD5: 7c3e9134db8cf1925abb530d734de0c3
SHA-1: 7c62cc77f5eeb749e9a75e21c13bae156b4befde

PE image details

File packed: No
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