Inconsistent registry virtualization in Windows Store package

[zooba]

BPO	46638
Nosy	@pfmoore, @tjguk, @zware, @zooba, @miss-islington
PRs	bpo-46638: Makes registry virtualisation setting stable when building MSIX packages #31130 [3.10] bpo-46638: Makes registry virtualisation setting stable when building MSIX packages (GH-31130) #31199 [3.9] bpo-46638: Makes registry virtualisation setting stable when building MSIX packages (GH-31130) #31200

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = 'https://github.com/zooba'
closed_at = <Date 2022-02-09.16:15:34.156>
created_at = <Date 2022-02-04.16:16:10.406>
labels = ['3.10', 'type-bug', '3.9', 'OS-windows', '3.11']
title = 'Inconsistent registry virtualization in Windows Store package'
updated_at = <Date 2022-02-09.16:15:34.155>
user = 'https://github.com/zooba'

bugs.python.org fields:

activity = <Date 2022-02-09.16:15:34.155>
actor = 'steve.dower'
assignee = 'steve.dower'
closed = True
closed_date = <Date 2022-02-09.16:15:34.156>
closer = 'steve.dower'
components = ['Windows']
creation = <Date 2022-02-04.16:16:10.406>
creator = 'steve.dower'
dependencies = []
files = []
hgrepos = []
issue_num = 46638
keywords = ['patch']
message_count = 6.0
messages = ['412513', '412517', '412522', '412770', '412773', '412775']
nosy_count = 5.0
nosy_names = ['paul.moore', 'tim.golden', 'zach.ware', 'steve.dower', 'miss-islington']
pr_nums = ['31130', '31199', '31200']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue46638'
versions = ['Python 3.9', 'Python 3.10', 'Python 3.11']

[zooba]

The build of the Store package detects whether the build PC supports disabling registry virtualisation or not when deciding whether to add it to the manifest. Because our release builds just moved from the windows-2019 image to the windows-2022 image, this setting changed and now builds have virtualisation disabled.

While this is probably desirable for some users, having it happen without warning is bad.

I'll check whether we can leave it unconditionally enabled for 3.11 and still install on older Windows versions. If it won't install, we'll just have to leave it disabled.

[zooba]

Okay, so it doesn't install at all on 1803. However, that's out of support 1, so I guess it doesn't matter.

In theory, 1809 should be the first one that supports it. I'll try that, but I think we're okay to leave this turned on for 3.11.

The changes for 3.9-3.10 will be to disable the option unconditionally.

[zooba]

Didn't work on 1809, but it does work on 20H2, which is the earliest update that will still be supported when 3.11 ships. I didn't try the ones in between, but I think we're okay to ignore them.

Interestingly, double-clicking the MSIX on Windows 11 refuses to install because of the unvirtualised resources, but on earlier Windows it's fine. The Powershell command (Add-AppxPackage <filename>) does work fine though. I'll see if I can find out what happened.

[zooba]

New changeset 3a5afc1 by Steve Dower in branch 'main':
bpo-46638: Makes registry virtualisation setting stable when building MSIX packages (GH-31130)
3a5afc1

[miss-islington]

New changeset 9c45390 by Miss Islington (bot) in branch '3.10':
bpo-46638: Makes registry virtualisation setting stable when building MSIX packages (GH-31130)
9c45390

[zooba]

New changeset 76b0727 by Miss Islington (bot) in branch '3.9':
bpo-46638: Makes registry virtualisation setting stable when building MSIX packages (GH-31130)
76b0727