IBM Notes 9 Single Sign-On not working in Windows 10

Yesterday I had the issue that Notes Single-SignOn was not working on a Windows 10 workstation for one client. I checked if the service was available and started.

After some investigation I read the hint on the ND9.0 Forum, did the requested actions and afterwards SSO was working fine again.

Check if the following registry entry includes either “npnotes” ( 32-bit OS ) or “npnotes64” ( 64-bit OS )

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\NetworkProvider\Order
Name: “ProviderOrder”

This value must contain either “npnotes” or “npnotes64” right AFTER “webclient” !!!

Customize the following file ( required registry key ) : https://www.dropbox.com/s/bwvxuxxw5l9yy7l/windows10_sso.reg?dl=0

If you have a 64bit-OS you just have to adjust the location of your npnotes64.dll, otherwise replace all “npnotes64” entries with “npnotes” and then customize the path.

Import the registry key into your registry

Restart your computer – DONE

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