How To Disable Notes System Debugger nsd.exe From Launching

Article:HOWTO80620  |  Created: 2012-09-29  |  Updated: 2014-12-31  |  Article URL
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How To

The presence of the Notes System Debugger (nsd.exe) is an indication that the Lotus Notes environment is in a bad state. This could cause NSF-related crawler/retriever issues. This Article addresses how to disable NSD from being launched.


  1. Stop EsaNsfCrawlerService and EsaNsfRetrieverService services
  2. End "nsd.exe" Process
  3. End "notesmm.exe" Process
  4. Open up services.msc > View Properties of the following EsaNsfCrawlerServiceEsaNsfRetrieverService
    1. Make note of the logon accounts used for each of these services
  5. Edit the notes.ini for the account identified in #4.
    1. For Windows 2008 Server, this is C:\Users\<account name>\AppData\Local\Lotus\Notes\Data'
    2. For Windows 2003 Server, this is C:\Documents and Settings\<account name>\Local Settings\Application Data\Lotus\Notes\Data
  6. At the end of the ini file, add the following:  APIDeveloper=1
  7. Ensure there is at least one blank line after this setting
  8. Start EsaNsfCrawlerService and EsaNsfRetrieverService services

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