Regsvr32 is a command-line utility to register and unregister OLE controls, such as DLLs and ActiveX controls in the Windows Registry. Regsvr32.exe is installed in the %systemroot%\System32 folder in Windows XP and later versions of Windows.

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter. Download troubleshooter.

When you start your computer successfully, the Windows Registry Checker tool (Scanreg.exe) creates a backup of system files and registry configuration information (including user account information, protocol bindings, software program settings, and user preferences) once daily.

Regedit.exe uses .reg files to import and export registry subkeys and values. You can use these .reg files to remotely distribute registry changes to several Windows-based computers. When you run a .reg file, the file contents merge into the local registry. Therefore, you must distribute .reg files with caution. back to the top. Syntax of .Reg ...

This article describes the command-line switches you can use when you run the MS-DOS version (Scanreg.exe) or the Windows version (Scanregw.exe) of the Registry Checker tool.

If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

Select Start , type regedit.exe in the search box, and then press Enter. If you are prompted for an administrator password or for confirmation, type the password or provide confirmation. In Registry Editor, locate and click the registry key or subkey that you want to back up. Select File > Export.

You will need to use the Regsvr.exe, Regsvr16.exe (16-bit), or Regsvr32.exe (32-bit) command to register the OCX file as system global. These commands are included in the development kit when Visual Basic or Visual FoxPro is installed.

This article describes the protection against the publicly disclosed Secure Boot security feature bypass that uses the BlackLotus UEFI bootkit tracked by CVE-2023-24932, how to enable the mitigations, and guidance on bootable media.

After you install the WinHelp32.exe program that is discussed in this article, certain macros are disabled. For more information about this issue, see the " Known issues " section. This section contains steps to re-enable these macros by modifying a registry key.