UnRegister DLLs

You can use the Regsvr32 tool (Regsvr32.exe) to register and unregister object linking and

embedding (OLE) controls such as dynamic-link library (DLL) or ActiveX Controls (OCX) files

that are self-registerable.

RegSvr32.exe has the following command-line options:

Regsvr32 [/u] [/n] [/i[:cmdline]] dllname

/u - Unregister server

/i - Call DllInstall passing it an optional [cmdline]; when used with /u calls dll

uninstall

/n - do not call DllRegisterServer; this option must be used with /i

When you use Regsvr32.exe, it attempts to load the component and call its DLLSelfRegister

function. If this attempt is successful, Regsvr32.exe displays a dialog indicating success.

If the attempt is unsuccessful, Regsvr32.exe returns an error message, which may include a

Win32 error code.

Example: To unregister Winshow\'s winshow.dll:

Click the Start button, and select Run

Enter this command line:

regsvr32 /u [systemroot]\\winshow.dll

For example, in a Windows XP machine in which your systemroot was at c:\\winnt, you would

enter:

regsvr32 /u c:\\winnt\\winshow.dll

你能构使用Regsvr32工具Regsvr32.exe注册和反注册目标链接和深层OLE控制器类似于自动注册的动态链

接库（DLL）和ActiveX控件。

（OCX）文件。

Regsvr32命令行参数：

格式：Regsvr32 [/u] [/n] [/i[:cmdline命令行]] dllnamedll文件名

/u - Unregister server反注册服务

/i - Call DllInstall passing it an optional [cmdline]; when used with /u calls dll

uninstall

/i 通过此DLL的可选参数，调用DLL安装，反安装使用/u

/n - do not call DllRegisterServer; this option must be used with /i

不调用DLL注册服务，此选项必须和/i一起使用

当你使用Regsvr32.exe，它会尝试载入DLL内组件并且调用本身的自注册功能。如果尝试成功，Regsvr32

.exe显示一个成功提示框，如果尝试失败，Regsvr32.exe会返回一个错误消息，一般会包含Win32错误代

码(特征码)。

例如

反注册Windows的windows.dll文件

1、点击“开始”按钮，选择“运行”

2、输入如下的命令行：

regsvr32 /u [systemroot系统目录]\\winshow.dll

注：卸载DLL时，目录为此DLL文件所在完整的最后打开的目录

如：在系统目录是c:\\winnt的Windows XP操作系统中，你可以输入如下命令行：

regsvr32 /u c:\\winnt\\winshow.dll

注意：一般来说，只有在无法删除某些注册过的DLL文件时，才使用Regsvr32.exe反注册此DLL，然后进

行删除，且命令参数为/u。