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NSD.exe is using 50% cpu on my machine

>I was working today and suddenly I found that my pc was very hot and the fan was running all the time. What is making the machine work like this I thought.

Looked at the taskmanager nsd.exe (32 bit app) is uinf 50% cpu.
Update 2012:
What you probably need to do is a client cleanup, install client killer and clean the log files 
get it here –> Client Killer


  1. I had the same thing. This is a diagnostic program that Lotus Notes runs after a crash in Notes. Just kill it and restart Notes. I had to do this twice as it restarted the diagnostic on the first restart.