# Deploy VIOSO

VIOSO comes as a standard Windows Installer. The most recent version of the installer is avaliable from this generic URL:

{% hint style="info" %}
Download the latest stable version of VIOSO:

[**https://vioso.info/download-vioso**](https://vioso.info/download-vioso)
{% endhint %}

Some notes on the installation:

1. An existing installation of VIOSO is replaced
2. Run the installer as admin
3. Confirm all SmartScreen Prompts
4. Default installation directory: C:\Program Files\VIOSO\[version]

We recommend to go with the default installation option as they guarantee the highest compatibility and ease of installation

## Common install errors

<details>

<summary>Error message "missing d3dx9_xx.dll"</summary>

Sometimes after a new install you might encounter this error messate at first start:

```
„d3dx9_40.dll“ or „d3dx9_43.dll“ is missing on your computer.
Reinstallation of the application could solve your problem.
```

An outdated, incomplete, or missing DirectX 9 runtime is the most likely reason for this error. You basically just need to (re)install it as an administrator.

See here how to install or update DirectX: [DirectX Runtime](/preparation/os/directx-runtime.md)

</details>

<details>

<summary>Error message "The application was unable to start correctly (0xc0…….)”</summary>

This error can happen because a required programming runtime environment is missing on your system. Please download and install the runtime environment provided by Microsoft:

* [Download Visual Studio 2015-2022 (64 Bit) runtime](https://aka.ms/vs/17/release/vc_redist.x64.exe)
* [Learn more about Visual Studio Runtimes (e.g. for other platforms than 64 Bit)](https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170#visual-studio-2015-2017-2019-and-2022)

After a reboot, this error should be gone and the application should start normally.

If the error still occurs, there could be an issue with the DirectX runtime (see [DirectX Runtime](/preparation/os/directx-runtime.md))

</details>


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```
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