Wow, thanks to all who have replied! I will try to answer some of the questions...
First to Outland144k...
Perhaps this will help with your confusion... I haven't installed Sonar Platinum on my new DAW machine (yet). This is what I'd been trying to accomplish, but have gotten no answer from support. I'd been building a new DAW system just for Sonar, but got sidetracked by life, and finally got around to finishing it up about 3 months ago. So although I'd purchased/paid for a Sonar Platinum subscription in April of 2015, it was only as of about 3 months ago that I actually had a system ready to install it on.
So... I purchased Sonar Platinum (1yr subscription) 4/1/15, (and renewed it (another year) 1/22/16), but haven't installed it yet. So the version on the My Products page just says "Sonar Platinum 4/1/2015". So I've got that, plus all the monthly updates to install. My DAW computer isn't configured to go online. So there is no way for Command Center to reach my computer. I'm going to have to use a flash drive to download all the content and then do the install on my DAW from the flash drive (and do the offline activation steps).
You mention that all the items on my list should show up on other DAWs as well. But maybe you missed part of my dilemma (now explained above)... actually what I was trying to know was if I couldn't get Sonar loaded on the system, which of those items from "My Products" would be functional and accessible with another DAW. It actually looks like DimensionPro 1.5 may be a "standalone" product that I could install and use even without Sonar. I'm not sure yet, but I was hoping the Lounge Lizard EP-4 would be independent of Sonar, and maybe Addictive Drums (it looks like an independent product). But... since the Mellotron and the Vintage Keyboards from DSF seem to mention Cakewalk Sound Center, I assume it is less likely that they would work if Cakewalk wasn't installed. Maybe there is a "wrapper" of some sort that I could get that would enable me to use those on a system without Sonar. Or maybe they are waveforms in a format that other sample players understand. Like the DimensionPro, it also looks like the Rapture 1.22 might also work standalone.
Before Platinum I always had bought a box/DVD version, so I could just load it on my older DAW even though there was no internet connection, so this download aspect, transfering to a flash drive and installing is a bit more cumbersome than that, especially now that so many monthly updates have been released.
And, to Beepster...
Thanks for the tip, I'd never even clicked on the items in the My Products list to realize there was another level below that, I thought I'd just end up downloading when I clicked the links. When I did that (clicked into the Sonar Platinum link) I discovered all sorts of stuff, but primarily the basic Sonar Platinum download link. Then, on your advice, I clicked the "SHOW OTHER DOWNLOADS" link and found all the monthly updates. So I should be good to get all of those downloaded and installed, I hope. It just seems a little overwhelming at this point (like 18 or so other downloads). Plus there seems to be a list of a lot of stuff down the left side as well (Connected Products). Particularly several FX Suites, and instrument collections. I assume I'll need to download and install each of those as well, or is that just a list of what is actually in the Sonar Platinum packages that I'll already be downloading?
Well, thanks guys!!! At least I've got some avenues to pursue. Looks like a significant task ahead.
Clicking around a it I've seen the Cakewalk Sound Center download link. There it is described to be a "simple and intuitive playback synth", but then at the bottom of the description it says "Requires Sonar", so presumably it wouldn't work with another DAW, and hence the Mellotron and Vintage Keyboard samples would presumably be Sonar only sounds. Presumably now I'll be able to figure out and get Sonar loaded, so that won't end up being an issue.
Greg Y.