Re: [PATCH v3 0/1] MR9943: msiexec: Fix escaping quoted arguments passed from Shell.

[eric pouech (＠epo)]

On Mon Feb  2 11:36:56 2026 +0000, Yaroslav Osipov wrote:
> Thank you! I found the next solution:
> ```sh
> echo 'start /wait /b msiexec /p some.msi INSTALLDIR="C:\Path with
> spaces\data" & exit !errorlevel!' | wine cmd /v:on
> MSIEXEC_ERRORCODE=$?
> ```
> "`/v:on`" functions similar to `SETLOCAL EnableDelayedExpansion`, so
> `exit !errorlevel!` will exit with the error code of msiexec.
> hmm looks like a bug in cmd.exe implementation. quick tests on win10 show that native cmd.exe's exit code (from a process point of view) is latest errorlevel

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https://gitlab.winehq.org/wine/wine/-/merge_requests/9943#note_128539