Sophos PET not starting anymore



It seems that our PET is no longer starting as a service on our SEC server.

The error we receive is "Unhandled Exception: System.BadImageFormatException: Could not load file or assembly 'log4net, Version=, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a' or one of its dependencies. The module was expected to contain an assembly manifest. at Sophos.PolicyEvaluation.Console.Program.Main(String[] args)" when trying to start it from an elevated prompt.

Any ideas what might be causing this?

  • Hello System administration,

    PET is no longer starting
    since when (and what could have changed)? Where do you see this error?

    when trying to start it from an elevated prompt
    trying to start which program? Are you referring to the service or the program?


  • In reply to QC:

    Hi Christian,

    We are in contact with Sophos support about this.

    It suddenly stopped working since last Saturday when we did a server maintenance.