Web applications are included in the technical preview milestone but not part of the technical preview program.

网络应用已包括在技术预览里程碑中，但不属于技术预览程序的一部分。

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The official Windows 7 Release Candidate is now available for all users through Microsoft's Customer Preview program.

微软官方面前已经通过其客户预览计划开始向广大用户们发布Windows 7 RC（候选发行版）了。

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For more in-depth testing, Square has a preview program with up to 50 merchants, in which it gives the merchants early access to new releases.

FORBES: Square's Early Testing Program Connects With Merchants

Paradoxically trying to save time, he poured himself into writing a program to summarize content in an easily digestible preview.

FORBES: Magazine Article

Exploiting the preview pane feature in Microsoft's Outlook e-mail program (which allows users to see a message in a small window before they open it) BubbleBoy can infect your PC even if you don't open the attachment it is hiding in.

CNN: From the Web