在C内启动“DOS”命令行时,如何避免Windows(XP)安全警告?

这充其量只是一个猜测(没有时间尝试),但是否可以尝试使用CreateNowindow?

http://msdn.microsoft.com/en-us/library/system.diagnostics.processstartinfo.createnowindow.aspx

下面是使用建议的解决方案后的代码:

private static void ExtractAll(DirectoryInfo _workingFolder) {
    if(_workingFolder == null) {
        Console.WriteLine("Répertoire inexistant.");
        return;
    }

    foreach (DirectoryInfo subFolder in _workingFolder.GetDirectories("*", SearchOption.AllDirectories)) 
        foreach(FileInfo zippedFile in subFolder.GetFiles("*.zip", SearchOption.AllDirectories)) {
            if(zippedFile.Exists) {
                Console.WriteLine(string.Format("Extraction du fichier : {0}", zippedFile.FullName));
                Process task = new Process();
                task.StartInfo.UseShellExecute = false;
                task.StartInfo.FileName = @".\Tools\7za.exe";
                task.StartInfo.Arguments = string.Format("x {0}", zippedFile.FullName);
                task.StartInfo.CreateNoWindow = true;
                task.Start();
                Console.WriteLine(string.Format("Extraction de {0} terminée", zippedFile.FullName));
                //ProcessStartInfo task = new ProcessStartInfo(@".\Tools\7za.exe", string.Format("x {0}", zippedFile.FullName));
                //Process.Start(task);
            }
    }
}