WPF toolkit distribution

My app uses WPF Toolkit (http://wpf.codeplex.com). Can anyone tell me what's the proper way of distributing my app ?

1) I can just dump the W开发者_JAVA技巧PFTookit.dll (copied from the WPFToolkit installer) into my app folder.

2) I cannot distribute the dll directly. My installer must execute WPFToolkit installer.

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Read the license. You can distribute it any way you want, but you must retain the copyright and license notices in your distribution.