> For the complete documentation index, see [llms.txt](https://docs.wproofreader.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wproofreader.com/v6.14.0/deployment/configuration/application-server/editing-appserverx.xml.md).

# Editing AppServerX.xml

`AppServerX.xml` controls most AppServer behavior.

The file is located at `/<WebSpellChecker_Installation_Path>/AppServer/AppServerX.xml`.

{% hint style="warning" %}
Always back up `AppServerX.xml` before editing.

If the XML becomes invalid, AppServer will not start.
{% endhint %}

### Workflow

{% stepper %}
{% step %}

#### Back up AppServerX.xml

Create a copy in the same folder.

* Example backup name: `AppServerX.xml.bak-YYYYMMDD-HHMMSS`

If anything goes wrong, restore the backup file and try again.
{% endstep %}

{% step %}

#### Edit AppServerX.xml

{% endstep %}

{% step %}

#### Restart AppServer to apply changes

Restart AppServer to apply changes in `AppServerX.xml`.

To restart: [stop](https://docs.wproofreader.com/v6.14.0/deployment/configuration/application-server/pages/IA2KNQLXDh85TwDivL4y#mainappservercommands-stopappserverwindowslinux2.stopappserver) the application, then [start](https://docs.wproofreader.com/v6.14.0/deployment/configuration/application-server/pages/IA2KNQLXDh85TwDivL4y#mainappservercommands-startappserverwindowslinux1.startappserver) it again.

Use [Main AppServer commands](/v6.14.0/deployment/configuration/application-server/main-appserver-commands.md).
{% endstep %}

{% step %}

#### Verify application operability

Use [health check](/v6.14.0/api-reference/auxiliary-api-commands/health-check.md) or [status](/v6.14.0/api-reference/auxiliary-api-commands/status-api.md) API to verify application operability after the change.

If application doesn't start after the change, see:

* [Cannot parse ini file "...\AppServer\AppServerX.xml". Reason: XmlDomParser. Invalid token \[..\]](/v6.14.0/troubleshooting/server-side-backend/cannot-parse-ini-file-...-appserver-appserverx.xml-.-reason-xmldomparser.-invalid-token-...md)
  {% endstep %}
  {% endstepper %}

### What to expect after restart

* If AppServer starts normally, your changes are applied.
* If AppServer doesn't start, revert to your backup.
* Then fix the XML and start the service again.