为什么要注册 DLL？我对 DLL 有很多基本的疑问，我试图将它们放在下面列出的问题表格中：
为什么我们需要注册一个DLL？
当我们注册一个 DLL 时会发生什么？
当我在 C# 代码中使用“LoadLibrary”时，我不进行任何注册。两者之间有什么联系/区别？（注册 DLL 和加载 DLL）
我可以注册所有的 DLL 吗？或者是否有一些无法注册的 DLL，为什么？
如果有人可以推荐一些在线文章来澄清我的疑问，那将有很大帮助！否则代码片段。
我正在使用这段代码，但它并没有给出我需要的东西，这就是我在这里问的原因....它在 32 位机器上工作正常，但它在 64 位机器上给出了拒绝路径错误
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Security;
using System.Management;
using System.IO;
using CCC_DLLRegistar.LoadLibrary;
using System.Security.Principal;
using System.Diagnostics;
namespace CCC_DLLRegistar
{
public partial class Form1 : Form
{
#region Is64BitOperatingSystem (IsWow64Process)
public static bool Is64BitOperatingSystem()
{
if (IntPtr.Size == 8) // 64-bit programs run only on Win64
{
return true;
}
else // 32-bit programs run on both 32-bit and 64-bit Windows
{
// Detect whether the current process is a 32-bit process
// running on a 64-bit system.
bool flag;
return ((DoesWin32MethodExist("kernel32.dll", "IsWow64Process") &&
IsWow64Process(GetCurrentProcess(), out flag)) && flag);
}
}
static bool DoesWin32MethodExist(string moduleName, string methodName)
{
IntPtr moduleHandle = GetModuleHandle(moduleName);
if (moduleHandle == IntPtr.Zero)
{
return false;
}
return (GetProcAddress(moduleHandle, methodName) != IntPtr.Zero);
}
[DllImport("kernel32.dll")]
static extern IntPtr GetCurrentProcess();
[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
static extern IntPtr GetModuleHandle(string moduleName);
[DllImport("kernel32", CharSet = CharSet.Auto, SetLastError = true)]
static extern IntPtr GetProcAddress(IntPtr hModule,
[MarshalAs(UnmanagedType.LPStr)]string procName);
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool IsWow64Process(IntPtr hProcess, out bool wow64Process);
#endregion
#region Is64BitOperatingSystem (WMI)
public static bool Is64BitOperatingSystem(string machineName,
string domain, string userName, string password)
{
ConnectionOptions options = null;
if (!string.IsNullOrEmpty(userName))
{
options = new ConnectionOptions();
options.Username = userName;
options.Password = password;
options.Authority = "NTLMDOMAIN:" + domain;
}
// Else the connection will use the currently logged-on user
// Make a connection to the target computer.
ManagementScope scope = new ManagementScope("\\\\" +
(string.IsNullOrEmpty(machineName) ? "." : machineName) +
"\\root\\cimv2", options);
scope.Connect();
ObjectQuery query = new ObjectQuery(
"SELECT AddressWidth FROM Win32_Processor");
// Perform the query and get the result.
ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query);
ManagementObjectCollection queryCollection = searcher.Get();
foreach (ManagementObject queryObj in queryCollection)
{
if (queryObj["AddressWidth"].ToString() == "64")
{
return true;
}
}
return false;
}
#endregion
public Form1()
{
InitializeComponent();
}
private string _RootPath = string.Empty;
private string _path = string.Empty;
private List<string> _Regfiles;
DLLHelper obj;
public string path
{
get { return _path; }
set { _path = value; }
}
public string RootPath
{
get { return _RootPath; }
set { _RootPath = value; }
}
private void Form1_Load(object sender, EventArgs e)
{
// Solution 1. Is64BitOperatingSystem (IsWow64Process)
// Determine whether the current operating system is a 64 bit
// operating system.
bool f64bitOS = Is64BitOperatingSystem();
//Console.WriteLine("The current operating system {0} 64-bit.",
// f64bitOS ? "is" : "is not");
// Solution 2. Is64BitOperatingSystem (WMI)
// Determine whether the current operating system is a 64 bit
// operating system through WMI. The function is also able to
// query the bitness of OS on a remote machine.
try
{
f64bitOS = Is64BitOperatingSystem(".", null, null, null);
//Console.WriteLine("The current operating system {0} 64-bit.",
// f64bitOS ? "is" : "is not");
if (f64bitOS == true)
{
RootPath = "C:\\windows\\SysWow64\\";
}
else
{
RootPath = "C:\\Windows\\System32\\";
}
bool isAdmin = new WindowsPrincipal(WindowsIdentity.GetCurrent())
.IsInRole(WindowsBuiltInRole.Administrator) ? true : false;
if (isAdmin)
{
MessageBox.Show("you are an administrator");
}
else
{
MessageBox.Show("You are not an administrator");
}
path = Application.StartupPath + "\\CCC DLL\\";
List<string> regsvr = new List<string>();
foreach (string s in Directory.GetFiles(path, "*.*").Select(Path.GetFileName))
{
regsvr.Add(Application.StartupPath + "\\CCC DLL\\" + s);
}
foreach (string filepath in regsvr)
{
Registar_Dlls(filepath);
}
_Regfiles=new List<string>();
foreach (string s in Directory.GetFiles(path, "*.dll").Select(Path.GetFileName))
{
_Regfiles.Add(Application.StartupPath + "\\CCC DLL\\" + s);
if (DLLHelper.UnmanagedDllIs64Bit(Application.StartupPath + "\\CCC DLL\\" + s) == true)
{
MessageBox.Show("62 bit");
}
else
{
MessageBox.Show("32 bit");
}
}
foreach (string s in Directory.GetFiles(path, "*.ocx").Select(Path.GetFileName))
_Regfiles.Add(Application.StartupPath + "\\CCC DLL\\" + s);
foreach (string filepath in _Regfiles)
{
obj = new DLLHelper(filepath);
obj.DumpToFile(RootPath + obj.GetDLLName());
}
MessageBox.Show("Register Colmpleted");
}
catch (Exception ex)
{
//Console.WriteLine("Is64BitOperatingSystem throws the exception: {0}",
// ex.Message);
MessageBox.Show(ex.Message.ToString());
}
}
public void Registar_Dlls(string filePath)
{
try
{
//'/s' : Specifies regsvr32 to run silently and to not display any message boxes.
//string arg_fileinfo = "/s" + " " + "\"" + filePath + "\"";
string arg_fileinfo = RootPath +"\regsvr32.exe"+" "+ "/s" + " " + "\"" + filePath;
Process reg = new Process();
//This file registers .dll files as command components in the registry.
reg.StartInfo.FileName = "cmd.exe"; //"regsvr32.exe";
reg.StartInfo.Arguments = arg_fileinfo;
reg.StartInfo.UseShellExecute = false;
reg.StartInfo.CreateNoWindow = true;
reg.StartInfo.RedirectStandardOutput = true;
if (System.Environment.OSVersion.Version.Major >= 6)
{
reg.StartInfo.Verb = "runas";
}
reg.Start();
reg.WaitForExit();
reg.Close();
// MessageBox.Show("Successfully Registered your Ocx files");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}
}