You can do this from your account (http://www.telerik.com/account/) by following these steps:
- go to Products and Subscriptions at the top
- Select Trials
- Find the product you need (you need to have downloaded a trial for it) and click Download
- Find the Demos Installation package and download it. For the UI for ASP.NET AJAX suite there is an msi installer and a zip archive (Manual Installation) available.
I hope this helps.
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