What is the startup program "Microsoft Lync 2010 - communicator.exe" on my Windows 7 computer?

"Microsoft Lync 2010 - communicator.exe" is installed as part of the Microsoft Lync 2010 software

You will see the "communicator.exe" listed on the Startup tab of msconfig.exe screen as:

Startup item: Microsoft Office 2010
Manufacture: Microsoft Corporation
Command: "C:\Program Files (x86)\Microsoft Lync\communicator.exe" /fromrunkey
Location: HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run

Program file information about "communicator.exe":

File name: communicator.exe
File path: C:\Program Files (x86)\Microsoft Lync
File size: 12,120,104 bytes
Last modified time: Tuesday, ‎August ‎15, ‎2017, ‏‎1:48:24 PM
File description: Microsoft Lync 2010
File version: 4.0.7577.4540
Company name: Microsoft Corporation

It is recommended to disable "Microsoft Lync 2010 - communicator.exe" as a startup program, as you can always run the communicator.exe manually whenever needed.

⇒ "Microsoft Office 2010 - BCSSync.exe" Startup Program on Windows 7

⇐ "Microsoft Office 2013 - lync.exe" Startup Program on Windows 7

⇑ Application Startup Programs on Windows 7

⇑⇑ Windows 7 Startup Programs