### Accessing URL Parameters in ClickOnce Application

Source: https://www.clickoncemore.net/documentation.php?page=advanced

Use ApplicationDeployment.ActivationUri to retrieve URL query string parameters when your application is launched from a URL. Ensure 'Allow URL parameters to be passed to application' is checked.

```csharp
ApplicationDeployment.ActivationUri
```

--------------------------------

### Launching Application with File Association

Source: https://www.clickoncemore.net/documentation.php?page=advanced

When an application is launched by double-clicking an associated file type, the file path can be accessed via ActivationData. Ensure the application is trusted and .Net 3.5 is targeted for file associations to work.

```csharp
AppDomain.CurrentDomain.SetupInformation.ActivationArguments.ActivationData[0]
```

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