In case you didn't know, Digital Publishing Solution (DPS) is becoming part of a new product called Adobe Experience Manager (AEM) Mobile. Here's an article explaining the change: Good-bye Adobe DPS, Hello AEM Mobile
That said, if you still need the DPS tools, you must install them into InDesign CS6. Here's a link to download the installer:
folio Will not install
Unless you're a large publishing conglomerate AEM is not for you!