The Windows Phone SDK Update for Windows Phone 7.8 adds two new simulator images to your existing Windows Phone SDK for installation. This update supports both Windows Phone SDK 7.1 and Windows Phone SDK 8.0. With this update, you can enjoy the "Start" screen experience for Windows Phone 8 in the Windows Phone 7.5 app.
Overview
The Windows Phone SDK Update for Windows Phone 7.8 adds the following content to your existing Windows Phone SDK installation:
• New Windows Phone simulator 7.8 (256 MB)
• Functions provided in Windows Phone SDK 7.1.1 (applicable to Windows Phone SDK 7.1 Users)
Note: you must first install Windows Phone SDK 8.0 or Windows Phone SDK 7.1 before installing Windows Phone SDK updates for Windows Phone 7.8.
System Requirements
Supported Operating Systems: Windows 7, Windows 8, Windows 8 Pro, Windows Vista
• If you have installed Windows Phone SDK 8.0, see Windows phones SDK 8.0 system requirements.
• If you have installed Windows Phone SDK 7.1, see Windows phones SDK 7.1 system requirements.
Download items
•: Http://www.microsoft.com/zh-cn/download/details.aspx? Id = 36474
• Due to the large size of the upgrade package, I have downloaded the package to 4.35 GB and it has not been completed yet. Download wpexpress78_update.exe with the/layout parameter and install it.