This deliverable tracks pulling out the source for the PseudoConsole API set.

Rationale

Right now, we're using conhost.exe directly as a pseudoconsole host. If we ship it as a framework package, we can switch to the "official" PseudoConsole APIs (CreatePseudoConsole, ClosePseudoConsole, etc.) and offer conpty as an independently-upgradable package on which WT and third party applications can depend. This will allow us to more fully undock from the OS release cycle.

Requirements

• Document/open HPCON
• Translate winconpty.c (which currently lives in kernelbase) from C to C++
  • produce conpty.dll, which hosts the three pseudoconsole APIs
• Produce a framework package

see also: #3577