I'm re-installing everything on my new DAW, which means running around trying to find installation disks and backups of downloaded software. Plus the joy of re-visiting every obtuse authorization scheme each vendor imposes (some plugins may just not make it onto the new DAW at all, too much trouble -  yeh, I'm talking to you, Waves).
 
A big one remaining is Omnisphere, but I can't find the installation disks and I don't remember if it was a boxed product or a download. Do they even sell it as a download? I'm just trying to narrow down what I'm looking for in the closet, a home-made backup of a download or a boxed set.

I hated it when I got my new DAW, all those softsynth installations to contend with. I have omnisphere and it comes on several DVD disks and was never released as a download.
 
Please don't take this wrong way but one tip I invested in a small server and copied all my softsynth installations to that unit. I then set up a text file and recorded all the soft synth serials into this one document, which I also backed up to the cloud. Although still painful installing all the stuff it did make it a tad less painful.
 

Have fun with your new rig.

XP X64?

Yeh, I have most of my stuff backed up to an external USB drive, which has helped a lot. But not Omnisphere. I recall that it was pretty big, which is probably why I didn't copy it.
 
So it's back to the closet to continue my hunt...wonder what other lost goodies I'll find in there. I've already found a string-less Mandola I bought in Spain in 1971, I'm hoping the neck isn't warped too badly. It'll be a wild guess as to what string gauges to put on it. 
 
New O/S is 8.1. I am running XP-32 in a virtual machine, but that's for legacy dev tools, not SONAR. For DAW-ing I'm trying to go 64-bit only for most stuff, to keep the installation simple (not because of Freddie's assertion that 64-bit plugins sound better). But that means re-downloading some plugins, which unfortunately is not an option for some older stuff. I may be out of luck with Ozone 4, for example. 

I just checked and all I have is an old Atmosphere box...
 
After looking inside I do see the Omnisphere 6 DVD disks, install manual, and upgrade paperwork from Spectrasonics.
After that initial install everything else (updates) has been downloads.

I found it. It wasn't a box, which I'd long ago tossed away, saving only the envelope the disks came in. A plain white envelope that doesn't say Omnisphere on it. Got my marker out and wrote "Omnisphere" in big letters for the next time.
 
Another question...these installation disks predate the 64-bit version, which came along in a subsequent update. Anyone know if it's OK to uninstall the 32-bit version after updating, or will the uninstall trash my libraries too?

I just renamed the 32bit plugins I didn't delete or uninstall them.
 
make sure you check your spectrasonics account and get all the library / update / patch files and install them in the correct order.  kind of a pain but it's like that with a lot of older installs that have been patched/updated.

I'm sure you all don't need a suggestion, but I keep all my DAW software in a big plastic box. It's a mess but I know where everything is.

I manually delete every 32bit .dll on my X64 system. x64 plugins work fine..

Yup...it's just a plain white envelope...I guess they should just send it to you in a brown paper sack. You'd think for the price you would at least get a nice box with a multi DVD booklet thingy. I did the same thing...took a sharpie and wrote OMNISPHERE on it. Sheesh.