
The 32-bit version is %systemroot%\SysWoW64\regsvr32.exe. The 64-bit version is %systemroot%\System32\regsvr32.exe.

Note On a 64-bit version of Windows operating system, there are two versions of the Regsv32.exe file: Regsvr32.exe is installed in the %systemroot%\System32 folder in Windows XP and later versions of Windows. Regsvr32 is a command-line utility to register and unregister OLE controls, such as DLLs and ActiveX controls in the Windows Registry.

If this article does not describe the error message that you are receiving, you can obtain detailed error message explanations, recommended actions, and additional support resources from the TechNet Events and Errors page.

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