Change Windows OS to support default terminal [defterm]

[dhrdlicka]

This issue tracks the work required to add "default terminal" support to Windows.

This is not terminal-specific, but Windows Terminal will benefit from it.

original content

This bug-tracker is monitored by Windows Console development team and other technical types. We like detail!

If you have a feature request, please post to the UserVoice.

Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues. Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue.

Please use this form and describe your issue, concisely but precisely, with as much detail as possible

• Your Windows build number: Microsoft Windows [Version 10.0.18885.1001]

• What you're doing and what's happening: When I type start in a command prompt session in the Windows Terminal, the new command prompt window opens in a new conhost window.

• What's wrong / what should be happening instead: The new command prompt should open in a new tab in the existing Terminal window.

[zadjii-msft]

This is by design.

We have plans to support setting another application as the "default terminal" on Windows, but those plans are still very rough and in the works.

[miniksa]

This will require an OS feature. I'm updating the title to represent the default terminal OS change.