my original script notes indicate that i had the file deleted along with a pile of networking files. i no doubt thought it was for network streaming. deleting anything that could be used for behind the scenes network traffic was the primary motivation in cutting the install up. it was just purely by accident that i was deleting it, and the only reason i put it back was that the dialog box was annoying.

so, this is a little embarrassing, really - i caused this problem myself. but i'm now absolutely certain it's resolved, too....