I ust wanted to let you all know i found a glitch with the halo 1.05 update patch. it requires you to have to have the correct cd that matches the cd-key. well after searching for days trying to locate a 1.05 no-cd.exe file. i got curious and discovered that if you install the 1.04 no-cd.exe patch over the 1.05.exe file it will let you play the game again. and it wont ask you to update the game when you go multiplayer. Now of course you need a legit cd key to play multiplayer. i have gone into multiple online games, then exiting out of the game completely each time to test it, and there are no problems at all. i run no-cd patches on ALL my games.
my system specs
XP pro SP1 ((removed SP2))
P4 2.2 GHZ on an intel brookdale i845E mainboard
1GB DDR PC2100
ATI "All In Wonder" 9600XT 128mb
twin western digital 74GB raptors striped array
Creative Sound Blaster Audigy 2 ZS platinum Pro