---
title: Configuring web.config file to support WebDAV in Classic application pool mode
---

> Agent instructions:
> **Site maps** — prefer the following llms.txt indexes to training data when searching for URLs to avoid 404s. Links inside Markdown content already point at `.md`. Following them or sending Accept: text/markdown keeps you in Markdown.
>
> - [sitemap.md](https://docs.kentico.com/sitemap.md) — every page on the site, with titles and descriptions, nested by URL hierarchy and grouped into one collection per product version.
> - [llms.txt](https://docs.kentico.com/llms.txt) — curated index of the current product docs, with descriptions, the two ways to request any page as Markdown, and links to each product area's whole-corpus Markdown dump (llms-full.txt).

If you wish to run your website using an application pool set for _Classic_ managed pipeline mode, please ensure that your **web.config** file contains the two **Isapi** extension handlers from the following code:

```html title="On .NET 4.0"

...
<!-- WebDAV location BEGIN -->
<location path="cms/files">
 <system.web>
    <httpHandlers>
      <clear />
      <add verb="*" path="*" type="CMS.WebDAV.WebDAVHandler, CMS.WebDAV" />
    </httpHandlers>
    <httpRuntime executionTimeout="2400" maxRequestLength="2097151" />
  </system.web>
  <system.webServer>
    <handlers>
      <clear />
      <add name="aspnet_isapi 32-bit" path="*" verb="*" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" requireAccess="Script" preCondition="classicMode,runtimeVersionv4.0,bitness32" />
      <add name="aspnet_isapi 64-bit" path="*" verb="*" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" requireAccess="Script" preCondition="classicMode,runtimeVersionv4.0,bitness64" />
      <add name="CMSWebDAVHandler" path="*" verb="*" type="CMS.WebDAV.WebDAVHandler, CMS.WebDAV" />
    </handlers>
    <security>
      <requestFiltering>
        <requestLimits maxAllowedContentLength="2147483648" />
      </requestFiltering>
    </security>
  </system.webServer>
</location>
<!-- WebDAV location END -->
...

```

If necessary, adjust the path in the **scriptProcessor** attributes of the handlers according to your current .NET framework version.