The hlproxy10.zip file you have requested: Tools and Utilities / Misc / Half-Life Proxy 1.0 - 391.71kb is not available. Perhaps try browsing all files for the game Half-Life and upload any files you want to share or are missing. This is the only information we could locate:
This file is for network administrators and their servers.
Ports used by HLProxy:
Incomig TCP/IP 2048
Ou Allows you to play Half-Life (or Counter-Strike) from more then one computer on your network over the same internet connection.