To get CLSID of OCX from its file name.

Hi,
I have an oCX ( say abc.ocx ). How can I get cLSID for it ( Programmatically )
I am using VC++. I have used GetClassFile which takes file name as [IN] parameter and gives clsid as [OUT] parameter, but it is failing.
I do not want to use manaual effort of exploring registry using regedit.

Thanks,
Onkar

Does CLSIDFromProgID() (where the OCX filename is the 'ProgID') do the job? (I don't know, I'm just trying to suggest a possibility).

Onkar,
do to want tofind the CLSID of the control contained in a OCX?A OCX can possibly contain many controls.So there is a possiblity that there might be many CLSID's ina single OCX.
The function GetClassFile is meant for finding CLSID of OLE objects stored in a structured storage file.A OCX is not a structured storage file.
So what you need to do is use the ITypeLib and ITypeInfo interfaces and LoadTypeLib.