How do I access my legacy games using the Battle.net desktop app?

The Battle.net desktop PC app seems to only have World of Warcraft, Starcraft 2, Diablo 3 and Hearthstone available for launch and updates. But I also have purchased and attached Diablo 2 and D2: Lord of Destruction CD keys to my Battle.net account, but they're not listed.

Among other legacy games are Warcraft 3: Reign of Chaos, WC3: Frozen Throne, Starcraft and SC: Brood War expansion.

Is there some way I can access these legacy games using the app?

Solution 1:

You don't, unfortunately.

The Battle.net desktop application does not have any support for what Blizzard refer to as "legacy games". This means that Diablo 2 and the Lord of Destruction expansion (amongst many others) are not available for installation or management through the Battle.net desktop application and can only be installed by logging into Battle.net and downloading the installers.

"All of the classic games will come to the app eventually. We'd love to do it now. It really boils down to having time and resources." -Vexis

Source: http://us.battle.net/en/forum/topic/13349474866#4