Đăng ký file ocx trong win7 64bit
Place the OCX File in %Systemroot%\SysWOW64
Run the Command Prompt in Administrative Mode and then register using Following commands

regsvr32 %systemroot%\sysWOW64\<your ocx name> <enter>
Place the OCX File in %Systemroot%\SysWOW64
Run the Command Prompt in Administrative Mode and then register using Following commands

regsvr32 %systemroot%\sysWOW64\<your ocx name> <enter>
7/20/2018 8:31:10 PM