Here's the source and binary distribution of zhm (Zephyr Host Manager) for Windows. It contains code from MIT's Athena Computing Environment, and also Gaim Internet Messenger
I ported it for use with Gaim, but it can also be used in conjunction with MIT Winzephyr to connect to zephyr servers at sites which do not use Hesiod.
Download it here:
Zhm for Windows 0.001 source and windows executable
Arun Tharuvai
aatharuv (at) mit (dot) edu