The following link explains how to manually uninstall Lotus Notes. This is a last resort if you can't uninstall your client through add/remove or program and features.
Link
Below is quote of the instructions:
To clean a Notes or partial Notes install from your Microsoft® Windows® client, complete the following procedure:
- Delete all folders in the Notes
\ except the \data folder. - Back up the Notes
\data folder and then delete all subdirectories in \data. Do not delete any root-level files from the Notes \data folder. - If Notes appears in your Add/Remove Program panel, run the Windows installer cleanup utility located at Microsoft Help and Support.
However it doesn't explain how to remove the Lotus Nodes Diagnostics and the new Lotus Notes Smart Upgrade service from your windows services.
This is where the sc command comes in handy. To remove the Lotus Notes Diagnostics service, first make sure the services are not running ( actually you need to make sure they are not running when you follow the steps in the link above ) Next open a command prompt and issue the command:
sc delete "Lotus Notes Diagnostics"
and you should get a response:
[SC] DeleteService SUCCESS
The double quotes are required. However when you do the same for the Lotus Notes Smart Upgrade Service
sc delete "Lotus Notes Smart Upgrade Service"
you get the error:
[SC] OpenService FAILED 1060:
The specified service does not exist as an installed service.
Even doing a
sc query
you can't find the service name but it shows in your services.
To fix this, right click on the Lotus Notes Smart Upgrade Service and go to properties. Take note of the service name. It says LNSUSvc. Now try:
sc delete LNSUSvc
and that works with [SC] DeleteService SUCCESS
That is it. Hope this helps someone out there!