Microsoft Download Center Archive

Visual Studio Async CTP (Version 3)

  • Published:
  • Version: CTP-SP1Refresh
  • Category: SDK
  • Language: English

The Visual Studio Async CTP (Version 3) extends Visual Studio 2010, providing a new, streamlined syntax for asynchronous development.

  • The original Async CTP from PDC 10 brought asynchronous programming to C# and Visual Basic in Visual Studio 2010. This update brings the following:
    • Compatible with Visual Studio 2010 SP1, which is now required.
    • Compatible with non-English installations of Visual Studio and with Visual Studio Express.
    • Compatible with Silverlight 5.
    • Compatible with Windows Phone SDK 7.1 (Mango).
    • Compatible with Roslyn CTP
    • Includes various bug-fixes and changes, detailed in the Readme and documentation.
    • Includes a new EULA for production use. Note - This license does not constitute encouragement for you to use the CTP for your production code. The CTP remains an unsupported and use-at-your-own-risk Technology Preview. However, we’ve received many requests from developers to use the CTP for production code, and so have changed the license to allow that.


Status: Live

This download is still available on The downloads below will come directly from the Microsoft Download Center.

FileSHA1 HashSize
Async-CTP-v3.exefaf976362ce3fd771bbb0fcf30d46761f58b504d21.98 MB

File sizes and hashes are retrieved from the Wayback Machine’s indexes. They may not match the latest versions of files hosted on Microsoft servers.

System Requirements

Operating Systems: Windows 7, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP

Installation Instructions

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    2. Do one of the following:
      • To start the installation immediately, click Open or Run this program from its current location.
      • To copy the download to your computer for installation at a later time, click Save or Save this program to disk.

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