Mascot: The trusted reference standard for protein identification by mass spectrometry for 25 years

Mascot Daemon version 2.3

All Mascot Daemon version 2.3 patches have been collected into a single executable file. This will update version 2.3.x to 2.3.02, but will not update files from earlier versions.

Available Fixes

  • 2854: Minor Daemon layout issues
  • 2892: Daemon reports "POST operation timed out" and pauses task
  • 2917: Daemon reports "Empty document returned" when retrieving results
  • 2937: Mascot Daemon passes unsuitable loglevel to Mascot Distiller for quant
  • 2948: Daemon merge of MGF files can produce corrupt output
  • 2949: Mascot Daemon needs to support MDRO MultiFileScanNumbering peak format options property

Update procedure

  1. Download and save the update program MascotDaemon_20100721.exe (586 kB) to the PC running Mascot Daemon.
  2. If running, exit Mascot Daemon
  3. As a user with Administrator privileges, start the update program.
  4. Verify that the Mascot Daemon application directory has been correctly identified.
  5. Choose to apply all patches.
  6. After the patches have been installed you can delete the update program.


  • After installing Mascot Daemon, you must run it at least once before trying to install the update patch. This is to ensure the Mascot Daemon service is created