The hldsprocbeta45.exe file you have requested: Utilities / Server Tools / Hlds_proc Beta 4.5 - 5.64mb 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:
New Features include the 0x02 bug in HLDS WebConsole fixed, start failure detection (after 8 start failures Hlds_proc will write to the log and give up, so servers with bad files wont constantly lock in a restart loop) and Hlds_proc_run now uses XP style controls if running on XP with it enabled. Theres other minor fixes/changes too.