Launcher: Support for Windows 10

With the release of Windows 8.1, the behavior of the GetVersionEx API has changed in the value it will return for the operating system version. The value returned by the GetVersionEx function now depends on how the application is manifested.

Applications not manifested for Windows 8.1 will return the Windows 8 OS version value (6.2). Once an application is manifested for a given operating system version, GetVersionEx will always return the version that the application is manifested for in future releases. To manifest your applications for Windows 8.1 please refer to Targeting your application for Windows 8.1

What you need to do is add the proper GUID(s) to your application (.exe/.dll) binaries (via manifest XML information). In other words, if you specifically state your application supports 8.1, GetVersionEx() will return proper information when running on Windows 8.1. If you do not, GetVersionEx() will lie to you.

See Targeting your application For Windows 8.1 for a list of GUIDs. Also covered here.

GUID List for the Lazy

Vista: {e2011457-1546-43c5-a5fe-008deee3d3f0}
Windows 7: {35138b9a-5d96-4fbd-8e2d-a2440225f93a}
Windows 8: {4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}
Windows 8.1: {1f676c76-80e1-4239-95bb-83d0f6d0da78}
Windows 10: {8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}

The issue names no source file, test, or build entry point. Start by locating the Windows launcher binaries and their manifest or build configuration, then inspect how GetVersionEx is used. Done means the launcher declares the Windows 10 GUID and reports the expected operating-system version on Windows 10.