A patch has been released for the owners of Half-Life: Initial Encounter, that included Half-Life: Day One and a stand-alone version of Team Fortress Classic.
This update makes the demo version of Team Fortress Classic by Real.com compatible with Half-Life Version 1.1.0.4
This update makes the full stand alone version of Team Fortress Classic by Real.com compatible with Half-Life Version 1.1.0.4.)