I can’t see anything that might be helpful, there does not appear to be any errors regarding firefly, infact the only event I could find that included the Add-in was the following;
Event Type: Information
Event Source: MsiInstaller
Event Category: None
Event ID: 11707
Date: 29/11/2007
Time: 16:26:45
User: GUARDIANAdministrator
Computer: GUARDIAN
Description:
Product: Firefly Media Server Settings Add-in — Installation completed successfully.For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 7b 44 30 45 36 36 42 38 {D0E66B8
0008: 35 2d 33 31 32 34 2d 34 5-3124-4
0010: 41 32 41 2d 38 35 33 38 A2A-8538
0018: 2d 35 46 46 46 36 38 46 -5FFF68F
0020: 31 34 42 31 31 7d 14B11}