Hi!
I'm not sure is adding of OLE properties supported in VFP, but if it possible
then the problem may be in early binding. If you create object by <OBJECT> tag or Dim obj As new SomeObject then early binding is used. Try to use late binding:

Dim obj As Object
Set obg = CreateObject("SomeLibrary.SomeObject")

>I create a COM server that I use in ASP web page.
>The problem is that in my class have a method tha use the method ADDPROPERTY() that add to my object new properties in run time, when I create the object with VB scripting language in my ASP page and prove to access the new properties added at run time, the ASP page return the following error:
>run-time error of Microsoft VBScript (0x800A01B6)
>Property or method not supported by the object