In case of trouble with the WibuKeyShellExtension there might also be other difficulties. Therefore, we recommend a clean uninstall and reinstall as described in KB-0016.
If the difficulties refer exclusively to the WibuShellExtension, a repair can be attempted by executing the supplied script "WibuShellExtRepair.cmd" at (Programs x86)\\WIBU-SYSTEMS\\System. Then you have to restart the system.
The last possibility is to uninstall the WibuShellExtension. The functions like right-click in Windows Explorer to create a context file or double-click on a WibuKey remote update file are then no longer available.  You can still create and/or import these remote files using the WibuKey tool in the Control Panel.
To uninstall, you can execute the following command via a command line (with administrator rights): regsvr32 /u (Programs)\\WIBU-SYSTEMS\\System\\WibuShellExt(64).dll.
Now the WibuShellExt.dll is no longer loaded after the restart of the computer and there should be no more difficulties with it.