Stats

info.cs

using System;
using System.IO;
using System.Reflection;
using System.Collections.Generic;
using System.Threading.Tasks;

class AssemblyStatistics
{
    static void Main()
    {
        string[] systemDirectories =
        {
            "C:\\Windows\\",
            "C:\\Program Files\\",
            "C:\\ProgramData\\",
            "C:\\Program Files (x86)\\"
        };

        var fileStatistics = new FileStatistics();
        const int MaxDepth = 5;

        foreach (string directoryPath in systemDirectories)
        {
            if (!Directory.Exists(directoryPath))
            {
                Console.WriteLine($"Directory {directoryPath} does not exist or is not accessible.");
                continue;
            }

            var files = new List<string>();
            GatherFiles(directoryPath, files, 1, MaxDepth);

            Parallel.ForEach(files, file =>
            {
                ProcessFile(file, fileStatistics);
            });
        }

        fileStatistics.ReportStatistics();
    }

    static void ProcessFile(string file, FileStatistics fileStatistics)
    {
        string extension = Path.GetExtension(file).ToLower();
        try
        {
            if (extension == ".exe" || extension == ".dll")
            {
                AssemblyName.GetAssemblyName(file);

                lock (fileStatistics)
                {
                    fileStatistics.IncrementValid(extension);
                }
            }
        }
        catch (Exception)
        {
        
        }

        lock (fileStatistics)
        {
            fileStatistics.IncrementTotal(extension);
        }
    }

    static void GatherFiles(string path, List<string> files, int currentDepth, int maxDepth)
    {
        if (currentDepth > maxDepth) return;

        try
        {
            files.AddRange(Directory.GetFiles(path));

            foreach (var directory in Directory.GetDirectories(path))
            {
                GatherFiles(directory, files, currentDepth + 1, maxDepth);
            }
        }
        catch (Exception ex)
        {
            //Console.WriteLine($"Warning: Unable to access directory '{path}'. {ex.Message}");
        }
    }
}

class FileStatistics
{
    private int totalExe = 0, validExe = 0;
    private int totalDll = 0, validDll = 0;

    public void IncrementTotal(string extension)
    {
        if (extension == ".exe")
        {
            totalExe++;
        }
        else if (extension == ".dll")
        {
            totalDll++;
        }
    }

    public void IncrementValid(string extension)
    {
        if (extension == ".exe")
        {
            validExe++;
        }
        else if (extension == ".dll")
        {
            validDll++;
        }
    }

    public void ReportStatistics()
    {
        Console.WriteLine($"Total EXE files: {totalExe}, Valid .NET EXE files: {validExe}");
        Console.WriteLine($"Total DLL files: {totalDll}, Valid .NET DLL files: {validDll}");
    }
}