ADOdb installation

For those of you that are using ADOdb, hopefully you can help me out. I'm evaluating PHP on IIS and I was curious if I had to have a directory with the ADOdb scripts for every virtual host? For example, if I had three virtual hosts at three different IP's: 210.210.210.200 210.210.210.201 210.210.210.202 Would each virtual host need to have a directory with the ADOdb scripts? Or would it be possible to setup a virtual directory in each virtual host that points to one folder that has the scripts? It seems a little wasteful and inefficient to have to copy the scripts for each virtual host. Or does someone know of a good way to do this? Thanks!