WiX Online Meeting 284 Highlights

The WiX Toolset discussions area on GitHub recovered from its spammer onslaught so we brought it back online shortly after our last meeting. Today's meeting was our first meeting with a full four weeks between meetings and, other than having a couple more issues to triage, we're still happy with the monthly cadence. Our next meeting is scheduled for 16-July.

Issue triage

The WixVariable ‘overridable’ attribute appears to be ignored (Bundle / WixLib), from @WalkerNA, is an issue reporting a regression that, some of us suspect, is related to the introduction of virtual symbols in WiX v5. Rob volunteered to take a look.
When using the msi internal UI with WixInternalUIBootstrapperApplication on high dpi monitor, the UI is to small, from @dcm99, is example #7402 of “High-DPI fun with Windows.” In this case, the WixInternalUIBootstrapperApplication stock BA that exposes the internal UI of MSI packages, does some funny things on high-DPI settings. It appears to work correctly on Windows 11 but Windows 10 has issues. The issue is up for grabs for pixel-friendly folks to investigate the impact of DPI awareness on a BA launching non-DPI-aware Windows Installer UI.
FileSearch does not work in a Merge Module, from @MatthiasRInst, was a surprise---oh, right, some people still use merge modules. Well, there’s definitely an issue when building a merge module with a DirectorySearch element. Though I’m on the record as mocking merge modules (e.g., see previous sentences), the issue is low-level enough to make for an intriguing bug fix, so I volunteered to take it.
Update WiX v6 dependencies, from @robmen, is an issue Rob opened to remind him to take care of hygiene issues. Not his own, but the routine upgrades we should do on our dependencies, for both the build-tooling side of WiX (like NuGet and xUnit) and the extension custom action side (like NETCoreCheck for WixToolset.Netfx.wixext).
Per User Installation - Rollback does not remove product registration from registry, from @destiny14, reports a problem during rollback of a per-user MSI package. Unless you’re using an extension---and sometimes not even then---WiX is just a build tool and isn’t involved at runtime. Runtime is all Windows Installer. But the reporter claims that another MSI build tool doesn’t exhibit this problem, so I volunteered to investigate.
Use after free when Util:User CreateUser functionality used, from @bevanweiss, reports a bug that has escaped detection, likely since the days of WiX v2, when we were all young and care-free, or at least more so. Rob, wearing his archaeologist-approved pith helmet, volunteered to carbon-date and fix the bug.
WIP: User Group creation / removal and Group->Group membership creation, from @bevanweiss, is a nicely filled-out WIP to add the ability to create user groups side-by-side with WixToolset.Util.wixext’s existing support to create users. Rob and I offered some feedback, a few suggestions, and otherwise thumbs-up’d the issue.