How to register OCX?

In the process of writing a program, we often have some good controls, want to use their own programs, then first know how to register OCX control, the following formula control as an example to explain:
Registering the Formula one component on the target machine

To implement registration in programming, the code is as follows:

1 define functions in the local external function:

Function long DllRegisterServer () Library "Vcf15.ocx"

2 Add the following code in the constructor event of the Formula one control:

Long LL_RC

LL_RC = DllRegisterServer ()

If LL_RC >= 0 Then

Super:: Event Constructor ()

End If