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# Collecting Profiler Logs
When debugging issues related to coverage on .NET, we sometimes need to retrieve Profiler logs.
The Profiler is a C++ component in charge of instrumenting tests during runtime, as well as the applications under test.
The following document details the necessary steps to collect these logs.
***
### Collecting Profiler logs from IIS
1. Open the Registry editor (regedit.exe)
2. Navigate to your service’s key: `System\CurrentControlSet\Services\WAS`
3. In the “Environment” multi-string value, add the following parameters in separate lines:
1. `SL_LogLevel=6`
2. `SL_LogDir=C:\SeaLights\Logs`
4. Perform the previous step on `System\CurrentControlSet\Services\W3SVC`
5. Restart IIS `iisreset /restart`
### Collecting Profiler logs from Windows Services
1. Open the Registry editor (regedit.exe)
2. Navigate to your service’s key: `System\CurrentControlSet\Services{YourService}`
3. In the “Environment” multi-string value, add the following parameters in separate lines:
1. `SL_LogLevel=6`
2. `SL_LogDir=C:\SeaLights\Logs`
### Collecting Profiler logs from Windows Processes
1. Define the following Environment Variables in the environment from which your process is started:
1. `SL_LogLevel=6`
2. `SL_LogDir=C:\SeaLights\Logs`
2. This can be achieved by running the following commands in their respective shells:
1. `set SL_LogLevel=6`
2. `set SL_LogDir=C:\SeaLights\Logs`
{% hint style="info" %}
Note: if your process starts from within a .bat file, a PowerShell script etc, the above environment variables need to be declared in those shells, or as Global environment variables.
{% endhint %}
### Collecting Profiler logs from VSTS/Azure DevOps Test Stages
1. In the “SeaLights Start Test Execution” step:
1. Set the “Profiler log level” to Debug
2. Run the build, including the test stage in question
3. After the build finished, review the logging destination:
1. Select the “SeaLights Start Test Execution” log
2. Towards the end of the logging output, there should be a string “Logs will be saved to”
3. The logging files will be inside the folder denoted above
---
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