Earlier versions of the app used the CS designation, which represented Creative Suite. InDesign CC is subscription-based, requiring a monthly or annual fee, while InDesign CS was available as a perpetual license which could be purchased and used forever with a one-time fee. Many of the same features necessary for working on projects are present in both the CC and CS versions of InDesign. While InDesign CS is no longer supported by Adobe Systems, it can still be used for many projects on Mac OS and Windows computers. While InDesign CC may not have received significant updates since the creative suite versions, related Adobe apps have been updated considerably. Users subscribing to the entire Creative Cloud for other applications can access InDesign CC as it is included. InDesign CC is useful if using the most current Windows operating systems.
I tried numerous times to install on my Windows 10 64 bit and Windows 7x64 computers using both the CD and the download link. The program only downloads the 32bit version, despite the fact that the box claims it will work in 64 bit as well as 32 bit mode. I contacted Corel support which was an extremely frustrating experience. Despite being registered on Corel's website, they could not find my registration and referred me back to Amazon for assistance. Entering another support ticket at Corel gave me another pair of unqualified support personnel. I won't try again!