Windows Phone SDK 7.1.1 is available


This article describes the new features that are included in the Community Technology Preview (CTP) version of Windows Phone Software Development Kit (SDK) 7.1.1

New features that this update enables

This update enables the following new features:
  • The ability to develop Windows Phone applications for devices that have low memory
  • The ability to test Windows Phone applications on a low-memory emulator that has around 256 MB of memory

More Information

Update information

Windows Phone SDK 7.1.1 is available from the following Microsoft Download Center website: For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.


To apply this update, you must have Windows Phone SDK 7.1 installed on your computer.

Restart requirement

You do not have to restart the computer after you apply this update.

File information

The global version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
File nameFile versionFile sizeDateTimePlatform
wm71c1.en-us.binNot applicable320,143,13914-Dec-201121:07Not applicable


For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates


Article ID: 2643715 - Last Review: Feb 16, 2017 - Revision: 3

Windows Phone 7.1 Dev Tools