> For the complete documentation index, see [llms.txt](https://docs.signius.eu/manuals/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.signius.eu/manuals/signius-sealing-server-and-client/signius-sealing-client/configuration/windows.md).

# Windows

## Provider connection configuration 

Depending on the software version, the user can choose between many service providers. More options available for Providers configuration can be found in chapter about this feature (direct link to the chapter below).

{% content-ref url="/pages/CeAp9WUKspLjh1MgdGZb" %}
[Providers](/manuals/signius-sealing-server-and-client/signius-sealing-client/features/providers.md)
{% endcontent-ref %}

### "Connection settings" tab

Open config GUI and in the "Connection settings" tab enter the necessary information to connect to the selected electronic seal service provider. Below step by step instruction:

* select "Provider type" from a dropdown list
* tick the checkbox "Enabled"
* adjust "Provider URL" if the default one is incorrect (URL address that will be used for communication with **SIGNIUS Sealing Server**)
* paste "API-KEY" value received from Your service provider (or from Your "On-Premise" **SIGNIUS Sealing Server** configuration)
* complete the process by clicking the "Connect" button

Example:

<figure><img src="https://589852599-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fw5TMyNwedzxaS12KAAVm%2Fuploads%2FOO0FmQUZmjmDu3MPuKD8%2FConnection%20settings.png?alt=media&amp;token=3604f543-8fb8-481e-9252-cafadc1c4795" alt=""><figcaption></figcaption></figure>

After successfully completing the above steps, the application is ready to work with selected service provider. This is necessary to use the sealing/signing functions offered by **SIGNIUS Sealing Client**.