Windows XP driver (should work in Longhorn too) for the Puretek PT-3805 modem.
File is self extracting to a default folder when double-clicked in Windows Explorer. Just accept by clicking on the UNZIP button when it appears. Point to this folder when driver files are asked for.
Note Puretek doesn't have drivers for Longhorn posted. This one will have to do til they do post. (if ever)