[DO NOT MERGE] Probe the Windows Registry

[leofang]

Checklist

• Used a personal fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[leofang]

Still can't find a proper way to fix #2 for downstream packages...😥 Closing.

[leofang]

Just a thought: maybe there's a bug in 10.1.1 and it's fixed by 10.1.2...?

[leofang]

Nope. Still fails. Compared to a force installation (of a newer version) that works in the current master, the uninstalling and removing (of the old version) done in this PR must have a missing piece so that smpd keeps picking up the old PMP version (#2). I tried examining the registry and the background processes, but found nothing noticeable. So sad...

[leofang]

Let me try one more thing...

[leofang]

Looks promising (?) -- At 207b627, the number of the outputs "request: received version 3, expected 4" is reduced from 2 to 1. Something is changed when I play with the registry!

[leofang]

No luck. Closing...

[leofang]

I need a separate playground for other tests when I have time, but #2 is fixed so let me close this one.