> For the complete documentation index, see [llms.txt](https://docs.devolutions.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.devolutions.net/server/knowledge-base/troubleshooting-articles/failed-request-tracing-with-iis/logs.md).

# Logs

With failed request tracing enabled, the log files are created and populated in the directory set up in [Configure failed request tracing](https://docs.devolutions.net/server/kb/troubleshooting-articles/failed-request-tracing-with-iis/configure-failed-request-tracing/). By default, the path is **%SystemDrive%\inetpub\logs\FailedReqLogFiles**. There, a folder typically named **W3SVC1** is created when the first case happens.

### W3SVC1 folder content

* XML files (**fr######.xml**): Open an XML file to view the log triggered by the tracing rule.
* XSL file (**freb.xsl**): For the display style, in an XML viewer like Internet Explorer.

<figure><img src="https://cdnweb.devolutions.net/docs/docs_en_kb_KB4324.png" alt=""><figcaption></figcaption></figure>

Here is an example of a failed request tracing log:

<figure><img src="https://cdnweb.devolutions.net/docs/docs_en_kb_KB4325.png" alt=""><figcaption></figcaption></figure>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.devolutions.net/server/knowledge-base/troubleshooting-articles/failed-request-tracing-with-iis/logs.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.