>Actually I have a problem with an Active-X object. On the intellisense side, everything works fine.
>
>I have an Active-X object which consist of 1 visual ( which we can add to form ) and 18 none visual ( which we can reference )classes.
>I have no problem with addin visual class to form. BUT to manipulate this visual object I have to create a reference object to one of its non visual sub classes.
>My problem starts here. When I use CREATEOBJECT() I get OLE Error 1426 .Library Not Registered.
>The author of this Active-X object asked me if referencing like VB6, exists in VFP9.
>As far as I know, like you told me, we don't have any other referencing way.

I've had a problem like that, and actually the author of the control found the solution, using the GetInterface() function. He learned that much VFP while we were trying to solve this. Syntax was like this:

oIntfRef=GETINTERFACE(this.object.interfaceName, "{its GUID}", "its.ocx")

These other interfaces weren't properly declared when building the OCX, but they worked in VB6, .net and few others which don't require full declaration and can take some shortcuts. Without this workaround, I was able to see these other interfaces in the object browser, in intellisense (in both command window, code editing windows and in the debugger), but none of their properties would pop up, I kept getting the "not implemented".

Actually, if the error you're getting is "not registered" on the main class - there's a glitch in the OCX mechanism, so when it's instantiated via CreateObject(), it assumes it's created for editing from runtime, for which it usually doesn't have a license. The workaround is to create an OleContainer class which would have that particular OLE control as its OLE Class, and then instantiate this OleContainer each time you need the ActiveX control instantiated. It's just a wrapper (and the reason why every once in a while regular syntax won't work, you need to use the this.object.something instead of this.something. The bit of the code above is taken from one such oleContainer.