Re: [PATCH v3 0/1] MR9997: shell32: ShellExecute uses SW_SHOWDEFAULT by default

[Nikolay Sivov (＠nsivov)]

I don't know why this was closed, but optional arguments are expressed as VT_ERROR(DISP_E_PARAMNOTFOUND), see is_optional_argument() in the same file.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/9997#note_128361