this is really both a ServerSide plus a Client side question

What I am trying to do is update a section of a webpage without the need to refresh the page, now the twist is I want this data to dynamicaly come from an ActiveX DLL and ASP I have.

I have seen somthing similar to what i want to do with the online virus scan programs that scan your system from the internet instead of having a virus app on your system (i.e www.pandasoftware.com 's "ActiveScan")

Is this possible?

Thanks in Advance