After uninstalling the Lotus Notes plugin, you find that Symantec-owned dll's are still being loaded (for example, nlnvp.dll).
The nlnvp.dll file is still available on the system and still referenced in the notes.ini file.
The plugin uninstallation does not remove the changes it made to the file.
This problem is fixed in Symantec Endpoint Protection 12.1 Release Update 3 (12.1 RU3). For information on how to obtain the latest build of Symantec Endpoint Protection, read ‘Obtaining the latest version of Symantec Endpoint Protection or Symantec Network Access Control’
A Windows 7 SP1 workstation with Lotus Notes 8.5.x and you have SEP 11.x or 12.x client with the Lotus Notes plugin installed.