TFT question (Warcraft 3)

In General there is Reign of Chaos The disc was bought for a long time and Battle.net after installing the game Worked but it's lyrics.
As time progressed, the Disk began to be overwritten and I attached its Key to the account of the General Battle.net System. Which then appeared (Or Rebrand) in the General question such as, without Losing the Licensed Properties of Reign of Chaos, to make TFT out of it?