Peter, thank you for answering.
Indeed, I found the User's Guide on my local disk. Thank you for pointing this out.
Please note, in my case it's not only unavailable in the "My Products" section on the web site, there is also no "Manuals" section with Syntronik 2 in the Product Manager. (In contrast, I see "Manuals" with all other software products.)
If you don't see the sound downloads please report that to IK Support and they can also relay the request to have the manual linked in the IK User Area and IK Product Manager.
That's what I did some days ago. Hope to hear from support soon.
Also note the IK Product Manager is the current and preferred way to download, install, and authorize your products. You will have the best experience installing any current IK products with it.
Honestly, while I love the sonic qualities of IK Multimedia software products, my experience with installation and authorization almost never was as smooth as it could be. In my personal experience, the manual download from the web site and installation (zip by zip) turned out to be my preferred process. Some of the advantages: 1) it just worked, 2) full control over installation directories, 3) download multiple files in parallel.
I'd like to switch to Product Manager if it gets enhanced in this direction. So I posted proposals to integrate these advantages to Product Manager here:
https://cgi.ikmultimedia.com/ikforum/viewtopic.php?f=14&t=25225&start=15#p125199.