How to use the Regsvr32 tool and troubleshoot Regsvr32 error messages
Run the following command: %systemroot%\SysWoW64\regsvr32 <full path of the DLL> Regsvr32 error messages in Windows Vista and later versions of Windows. Regsvr32.exe error messages in Windows XP. Describes how to use the Regsvr32 tool to register and unregister OLE controls. Also describes the error messages that may occur and what they mean.