The browser.zip file you have requested: Tools and Utilities / Misc / Old School Server Browser - 17.34kb 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:
Old school server browser for playing pre-18.104.22.168 mods such as CStrike 5.2 and Action Halflife Beta 3. Old school server browser for playing pre-22.214.171.124 mods.