If I understand correctly, you need to register ActiveX DLLs from your server to client location.
If it is so, you first need to download the DLLs on client machine in Temp folder (Windows Temp folder) as the vbscript runs on client side. Once you have downloaded the ActiveX files in the Temp folder, you can use the following code to get path of folder:
Dim filesys, demofolder, createdate
Set filesys = CreateObject("Scripting.FileSystemObject")
Set demofolder = filesys.GetFolder("foldername")
Hope that helps.