I need help with this I can't open any program like Aim or Msn nothing neither TS or play ESF or half life mods.When I double click to start program I get this error "This File Does Not Have A Program Associated with it performing this action.Creat an Association in the folder Options control panel."I tryed going to Accesibility Option but I get the same error who can I fix this without accessing nothing.I can accest My Computer,My Documents,and other stuff other than run any program!! do I have to reinstall Windows Xp as in Upgrade so it can fix this errors or reformat completely?