Article ID: 119730, created on Jan 20, 2014, last review on May 2, 2014

  • Applies to:
  • Plesk 11.5 for Windows


  1. Unable to start the service Dr. Web from the Plesk Control Panel, it fails with error:

    Error: Could not complete the operation: defpackagemng failed: is not a valid Win32 application. (Error code 193) at StartService 'drwebcom'
    at (service::startService line 211)
    at startService(drwebcom)(service::startService line 274)
    at execute console command --service-control(vconsoleapp::start line 97)
    at execute "C:\Program Files (x86)\Parallels\Plesk\/admin/bin/defpackagemng" --service-control "--service=drwebcom" "--action=start"(vconsoleapp::run line 107)

Event details:

    The DrWebCom service failed to start due to the following error: DrWebCom is not a valid Win32 application.
  1. Some service or executable file fails to start with error:

    %service% is not a valid Win32 application.


Executable file is corrupted.


If the issue is related to Dr. Web, please make sure that DrWebCom.exe is not corrupted or has 0 Kb size. Usually this file is located in C:\Program Files (x86)\Parallels\Plesk\DrWeb. The same you should check if other service fails to start. Try to restore this file and start service again.

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Issue with Dr. Web

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