What causes "当前只允许选择 .exe 程序。" in babalae/better-genshin-impact?

babalae/better-genshin-impact · warning · ArgumentException

当前只允许选择 .exe 程序。

Error message

当前只允许选择 .exe 程序。

What it means

Thrown by ValidateExecutablePath when the selected file's extension is not ".exe" (case-insensitive). The Task Scheduler exec action used for elevated Child Session launch requires a real executable; scripts and shortcuts are rejected to avoid ambiguous behavior.

Source

Thrown at BetterGenshinImpact/Service/ChildSession/ChildSessionProcessLauncher.cs:208

            ReleaseComObject(registeredTaskObject);
            ReleaseComObject(actionObject);
            ReleaseComObject(taskDefinitionObject);
            ReleaseComObject(rootFolderObject);
            ReleaseComObject(schedulerObject);
        }
    }

    private static string ValidateExecutablePath(string executablePath)
    {
        var fullPath = Path.GetFullPath(executablePath);
        if (!File.Exists(fullPath))
        {
            throw new FileNotFoundException("要启动的程序不存在。", fullPath);
        }

        if (!string.Equals(Path.GetExtension(fullPath), ".exe", StringComparison.OrdinalIgnoreCase))
        {
            throw new ArgumentException("当前只允许选择 .exe 程序。", nameof(executablePath));
        }

        return fullPath;
    }

    private static string QuoteArgument(string argument)
    {
        return $"\"{argument.Replace("\"", "\\\"", StringComparison.Ordinal)}\"";
    }

    private static void ReleaseComObject(object? value)
    {
        if (value is not null && Marshal.IsComObject(value))
        {
            Marshal.FinalReleaseComObject(value);
        }
    }

View on GitHub (pinned to a7cb36712d)

Solutions

Select a .exe file directly.
To run a script, launch cmd.exe or powershell.exe as the executable and pass the script path as an argument.
Convert the script into a packaged executable if frequent launches are needed.

Defensive patterns

Strategy: validation

Validate before calling

var fullPath = Path.GetFullPath(executablePath);
if (!string.Equals(Path.GetExtension(fullPath), ".exe", StringComparison.OrdinalIgnoreCase))
{
    throw new ArgumentException("当前只允许选择 .exe 程序。", nameof(executablePath));
}

Try / catch

try
{
    await launcher.LaunchElevatedAsync(childSessionId, exePath);
}
catch (ArgumentException ex) when (ex.Message.Contains(".exe"))
{
    logger.LogWarning("Only .exe files are allowed for Child Session launch");
}

Prevention

Filter the file picker to *.exe so users cannot select other extensions.
Document that scripts must be wrapped (cmd.exe/powershell.exe as the executable) in the launch UI.
Validate the extension before dispatching to the Task Scheduler path.

When it happens

Trigger: User selects a .bat, .cmd, .ps1, .lnk, .msi, or a file with no extension via LaunchExecutableAsync.

Common situations: User tries to launch a batch file or PowerShell script directly into the Child Session; user picks a Start Menu shortcut (.lnk).

Related errors

AI-assisted analysis of babalae/better-genshin-impact@a7cb36712d (2026-08-13). Data as JSON: /api/errors/867e307f6efd6c2b. Report an issue: GitHub.