CreateObject, New, ActiveX exe involved

Hello,
I have a ActiveX exe project and a standard project. My standard project reference ActiveX exe project.
To make it simple, I have one class module in the ActiveX exe project and I need to create an instance of the class in a new thread in the Standard project. These are how I've been tring:
In the standard exe:
Dim objMyClass As ProjectName.MyClass
Set objMyClass = CreateObject(ProjectName.MyClass);

I get the object successfully ONLY IF I have class_initialize in MyClass as Public or I have THIS LINE at the beginning of my MyClass module
Class MyClass As MyClass

I find it more intersting, when I put these lines in my standard exe, it also works:
Dim objMyClass As ProjectName.MyClass
Set objMyClass = New MyClass;

I'm not sure how vb6 make a class publicly creatable and I don't know why what I tried works. I just guess and that works for me. I'd like to know WHY if anyone can help me really appreciate it. I've checked MSDN but no luck until now. Thanks all.

well, I don't know. Just recomile the 2 projects a couple of times, now both way works. Just can't say anything. Anyone have the same exp?

Sounds suspiciously like a registry problem with all those GUID's that VB automatically produces for you.

Make sure that you try to keep binary compatibility on as much as you can (and put up with the warnings on interface changes)

A better solution is to use IDL for the COM interfaces (which can, in the future, be directly imported into .Net applications)