ActiveX controls are rarely written "for Access", but for a variety of
languages, and there are, indeed, _many_ of them. Some include Access in
their developers' target audience and are tested with Access; others are
written without regard to Access' "peculiarities" in working with Access but
work with Access anyway; others just don't work well with Access. But, in
any case, I'm reasonably certain that the list you'd like to have just does
not exist.
If you have a particular need, it's much easier to ask about a custom
control / ActiveX that might meet that need, then examine the ones that are
recommended.
To look at information about an ActiveX or object in a library to which you
have set a reference, you can, in the module window (IDE) of Access 2003 and
earlier, on the menu, View | Object Browser.
