DWG Compatability with AutoCAD Versions?

I want to confirm the compatability of the AutoCAD automation libraries with DWG formats produced in different versions of AutoCAD.

i.e - I have a small app written in VB which makes use of the AutoCAD 2000 Type Library - it updates some info in drawing title blocks.

Now, I've pulled the ACAD.TLB file from AutoCAD 2002. Will this same library work against drawings produced in other versions of AutoCAD (or other AutoDesk products - e.g AutoSketch), and if so - is there a 'supported' list?

 

Type libraries have no direct linkage or dependence on
AutoCAD drawings or the version of AutoCAD they were
saved as.

A type library describes interfaces for ActiveX objects,
not drawing objects.

IOW, the type library is specific to the application that
exposes the ActiveX objects (AutoCAD in this case). So,
to utilize a type library, you must have the application
that exposes the objects from the type library, and the
right version of the application.

Any application built using the AutoCAD 2000 type library
will run on AutoCAD 2000 through 2002. Applications
built using the AutoCAD 2004 type library will run on
AutoCAD 2004 and 2005.

 

Tony, I know it's best to reference the type library, but I have written
some small apps in vb that do not reference the type library when built and
found they run in '02 to '05.