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Editorial Team
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Asked: 2026-06-13T13:05:48+00:00

Currently I have the following statement in my code to allow me to debug

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Currently I have the following statement in my code to allow me to debug windows services:

#If DEBUG Then
        System.Diagnostics.Debugger.Launch()
#End If

I place this in the OnStart method and when I start up the service I can attach to my instance of Visual Studio. Currently I have an instance where this is failing. I have the service installed on a virtual machine and I’m running into the following error:

An unhandled exception (‘Launch for user’) occurred in
MyService.exe [376]. Just-In-Time debugging this
exception failed with the following error: Debugger could not be
started because no user is logged on.

I’ve never had a problem debugging services like this on my local machine so I’m not sure what’s going on. The user is set to log on as LocalSystem if that matters. I am logged on to the virtual machine via Administrator.

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1 Answer

  1. Editorial Team

    I ended up putting the following statement in the OnStart method:

    #If DEBUG Then
    While True

    End While
#End If

    This allows me to manually attach to the process in visual studio and set a break point in the while loop. Once I hit the breakpoint I manually step outside of the while loop to proceed with the rest of the application.

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