Update ActiveX DLL in use at runtime.

Hi all VB experienced professionals~ I'm new to this forum...

I am trying to write a single VB application (actually a Palm conduit, but doesn't make a difference for this problem) that need to get the most updated ActiveX DLL (only if Internet connection is available) and use it right the way.

But since that single VB application already references to that ActiveX DLL, I can't overwrite the ActiveX DLL file..... Is there a way so I can download the new DLL and use it right the way?