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  • eLicenser service closes down in 2025
    After years of managing your Steinberg software licenses, the eLicenser-based licensing service will be closing down early in 2025. Read more...

How to uninstall the eLicenser Control Center / License Control Center

This article describes how to uninstall the eLicenser Control Center particularly thoroughly.

This may be necessary in exceptional cases to solve persistent problems with the eLicenser Control Center or a USB-eLicenser (dongle).

Normally, however, a straight installation of the current eLicenser Control Center is sufficient.

If you still have the Syncrosoft License Control Center installed, which was discontinued many years ago, please read the corresponding notes further down on this page.

Important: Always quit all programs before uninstalling! It is also recommended disconnecting USB-eLicensers from the computer first and reconnecting them only after the successful reinstallation. 



eLicenser Control Center

The following files have to be deleted manually to completely remove the eLicenser Control Center:

eLicenser Control Center on Mac OS X / macOS

Please use the uninstaller that comes with the latest eLicenser Control Center version (Mac OS X 10.5 or later). 

Important: Please close all applications before starting the uninstallation! 

Afterwards, please verify whether any of these files are still on the system and delete them manually.

Note that since Mac OS X 10.7 (Lion) the Library folder is hidden by default. You can access it by choosing "Go" from the menu while holding down the ALT key. This adds the "Library"-entry to the list.

  • /Applications/eLicenser Control Center
  • /Library/Application Support/eLicenser
  • /Library/Receipts/SyncrosoftLicenseControl.pkg
  • /Library/Receipts/eLicenserControl.pkg
  • /Library/Receipts/LCC.pkg
  • /Library/Receipts/NOS.pkg 
  • /Library/Receipts/POS.pkg
  • Beginning with Mac OS X 10.6 also:
    in /var/db/receipts/ all files that start with "com.syncrosoft" and "com.eLicenser".

eLicenser Control Center on Windows

Please uninstall eLicenser Control Center via Programs and Features (Windows Vista or later) or Start > Control Panel > Software (Windows XP).
Important: Please close all applications before starting the uninstallation! 
Afterwards, please verify whether any of these files and folders are still on the system and delete them manually.
To be able to see all files and folders, Windows Explorer needs to be set up correctly: Menu Tools (in Windows Vista or later you have to press "Alt" to see the menus) > Folder Options > View > Hidden files and folders > Show hidden files and folders

C:\Windows\system32\
All "SynsoNos", "Synsopos" and "Synsoacc" files

On 64-bit installations only
C:\WINDOWS\SysWOW64\SYNSOACC.dll
C:\WINDOWS\SysWOW64\SYNSOACC-Hilfe.chm
C:\WINDOWS\SysWOW64\SYNSOACC-Help.chm
C:\WINDOWS\SysWOW64\SYNSOACC-Aide.chm
C:\WINDOWS\SysWOW64\SYNSOPOS.exe

Driver 32-bit Windows
C:\WINDOWS\system32\drivers\SynasUSB.sys
C:\WINDOWS\inf\SynasUSB.inf

Driver 64-bit Windows
C:\WINDOWS\system32\drivers\SynUSB64.sys
C:\WINDOWS\inf\SynUSB64.inf

User specific files*
C:\ProgramData\eLicenser
C:\ProgramData\Syncrosoft

User specific files on Windows XP*
C:\Documents and Settings\All Users\Application Data\eLicenser
C:\Documents and Settings\All Users\Application Data\Syncrosoft

 

 

Syncrosoft License Control Center (outdated)

The following files have to be deleted manually to completely remove the old License Control Center:

Syncrosoft License Control Center on Mac OS X

  • /Applications/License Control Center
  • /Library/Syncrosoft
  • /Library/Application Support/Syncrosoft
  • /Library/Logs/Syncrosoft/
  • /Users/[current user]/Library/Logs*

Syncrosoft License Control Center on Windows

After uninstalling the Syncrosoft License Control Center using the standard Control Panel > Programs and Features (XP: Software) function, check whether the following files are still there and remove them manually.

To see all files and folders, please check whether Windows Explorer is configured correctly: Menu Tools (in Vista you have to press "Alt" to see the menus) > Folder Options > View > Hidden files and folders > Show hidden files and folders

C:\Windows\system32\
All "SynsoNos", "Synsopos" and "Synsoacc"files

Only on 64-bit installations
C:\WINDOWS\SysWOW64\SYNSOACC.dll
C:\WINDOWS\SysWOW64\SYNSOACC-Hilfe.chm
C:\WINDOWS\SysWOW64\SYNSOACC-Help.chm
C:\WINDOWS\SysWOW64\SYNSOACC-Aide.chm
C:\WINDOWS\SysWOW64\SYNSOPOS.exe

Driver 32-bit Windows
C:\WINDOWS\system32\drivers\SynasUSB.sys
C:\WINDOWS\inf\SynasUSB.inf

Driver 64-bit Windows
C:\WINDOWS\system32\drivers\SynUSB64.sys
C:\WINDOWS\inf\SynUSB64.inf

User specific files*
C:\ProgramData\Syncrosoft  

User specific files on Windows XP*
C:\Documents and Settings\All Users\Application Data\Syncrosoft

*Please note: It is recommended to keep a backup copy of the user specific files. Otherwise, interrupted license downloads and the list of already used activation key codes will be lost.

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