Avaya one-X® Communicator Avaya one-X® Communicator

A guide to uninstall Avaya one-X® Communicator from your computer

Avaya one-X® Communicator is a computer program. This page holds details on how to remove it from your PC. It is made by Avaya Inc.. You can read more on Avaya Inc. or check for application updates here. You can see more info about Avaya one-X® Communicator at . Avaya one-X® Communicator is frequently installed in the C:\Program Files (x86)\Avaya\Avaya one-X Communicator folder, depending on the user's option. Avaya one-X® Communicator's full uninstall command line is MsiExec.exe /X{38B79FFF-3C4D-4AF9-99AF-17B1A2C55957}. onexcui.exe is the programs's main file and it takes circa 1.41 MB (1474408 bytes) on disk.

Avaya one-X® Communicator is comprised of the following executables which take 1.46 MB (1533560 bytes) on disk:

  • onexcui.exe (1.41 MB)
  • CertMgr.Exe (57.77 KB)

This web page is about Avaya one-X® Communicator version only. Click on the links below for other Avaya one-X® Communicator versions: to view all...
Some files and registry entries are typically left behind when you remove Avaya one-X® Communicator.

Folders remaining:
  • C:\Program Files (x86)\Avaya\Avaya one-X Communicator

Files remaining:
  • C:\Program Files (x86)\Avaya\Avaya one-X Communicator\app.ico
  • C:\Program Files (x86)\Avaya\Avaya one-X Communicator\Avaya.UCA.Logger.dll
  • C:\Program Files (x86)\Avaya\Avaya one-X Communicator\Avaya.UCA.PresenceNotificationService.Contract.dll
  • C:\Program Files (x86)\Avaya\Avaya one-X Communicator\Avaya.UCA.PresenceNotificationService.Server.dll

Use regedit.exe to manually remove from the Windows Registry the data below:
  • HKEY_CLASSES_ROOT\TypeLib\{449507CB-EE4A-4246-B8C3-B904AD62C3F6}
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\{38B79FFF-3C4D-4AF9-99AF-17B1A2C55957}

Additional values that are not cleaned:
  • HKEY_CLASSES_ROOT\CLSID\{DBF9752A-B1DA-40D4-9C8D-C7CC9D4196E1}\InprocServer32\
  • HKEY_CLASSES_ROOT\TypeLib\{449507CB-EE4A-4246-B8C3-B904AD62C3F6}\1.0\0\win32\
  • HKEY_CLASSES_ROOT\TypeLib\{449507CB-EE4A-4246-B8C3-B904AD62C3F6}\1.0\HELPDIR\
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\{38B79FFF-3C4D-4AF9-99AF-17B1A2C55957}\InstallLocation

How to erase Avaya one-X® Communicator from your computer with Advanced Uninstaller PRO

Avaya one-X® Communicator is a program by the software company Avaya Inc.. Frequently, computer users try to uninstall it. This can be easier said than done because removing this by hand requires some know-how regarding removing Windows programs manually. The best QUICK action to uninstall Avaya one-X® Communicator is to use Advanced Uninstaller PRO. Here are some detailed instructions about how to do this:

1. If you don't have Advanced Uninstaller PRO on your system, install it. This is good because Advanced Uninstaller PRO is one of the best uninstaller and general utility to optimize your PC.


  • navigate to Download Link
  • download the setup by clicking on the green DOWNLOAD NOW button
  • install Advanced Uninstaller PRO
2. Run Advanced Uninstaller PRO. Take your time to admire Advanced Uninstaller PRO's interface and number of functions available. Advanced Uninstaller PRO is a powerful package of utilities.

3. Press the General Tools button
Go to General Tools

4. Activate the Uninstall Programs tool
Go to Uninstall Programs

5. A list of the applications installed on the PC will appear

6. Navigate the list of applications until you locate Avaya one-X® Communicator or simply activate the Search field and type in "Avaya one-X® Communicator". If it is installed on your PC the Avaya one-X® Communicator app will be found automatically. After you select Avaya one-X® Communicator in the list , some data regarding the application is shown to you:

  • Safety rating (in the left lower corner). This tells you the opinion other users have regarding Avaya one-X® Communicator, ranging from "Highly recommended" to "Very dangerous".
  • Opinions by other users - Press the Read reviews button.
  • Technical information regarding the application you are about to remove, by clicking on the Properties button.
For example you can see that for Avaya one-X® Communicator:

  • The web site of the application is:
  • The uninstall string is: MsiExec.exe /X{38B79FFF-3C4D-4AF9-99AF-17B1A2C55957}
7. Click the Uninstall button. A confirmation window will come up. Confirm the uninstall by pressing Uninstall. Advanced Uninstaller PRO will then remove Avaya one-X® Communicator.
Uninstall Avaya one-X® Communicator

8. After removing Avaya one-X® Communicator, Advanced Uninstaller PRO will ask you to run a cleanup. Click Next to perform the cleanup. All the items that belong Avaya one-X® Communicator which have been left behind will be found and you will be able to delete them. By uninstalling Avaya one-X® Communicator using Advanced Uninstaller PRO, you can be sure that no registry items, files or folders are left behind on your disk.

Your system will remain clean, speedy and able to run without errors or problems.

Geographical user distribution

  • Windows 7 (6.1)
  • 10.0
  • Windows 8.1 (6.3)
Software Application


This page is not a piece of advice to uninstall Avaya one-X® Communicator by Avaya Inc. from your computer, we are not saying that Avaya one-X® Communicator by Avaya Inc. is not a good software application. This page only contains detailed instructions on how to uninstall Avaya one-X® Communicator in case you want to. Here you can find registry and disk entries that Advanced Uninstaller PRO discovered and classified as "leftovers" on other users' PCs.

2016-06-28 / Written by Daniel Statescu for Advanced Uninstaller PRO

follow @DanielStatescu
Last update on: 2016-06-28 19:51:07.410