The plugins even appear in the registry, but not in the effects list. Process Monitor has been my main tool for troubleshooting plugins that don't scan, because it will identify any external dependencies and tell you if Windows permissions prevented some step from executing. Unfortunately, that also means the scanner only knows if the registration failed, never why it failed. All it does is call functions in the VST itself that do most of the work, and all the scanner has to do is summarize what the VST tells it. I doubt my problem is an issue with the scanner, though. I would like to have the newer VST scanner, though, as it has the ability to write to a log during the scan. It does everything I need it to do, and a couple very important things (to me) that all later versions of SONAR cannot. I am committed to sticking with SONAR 8.5. I don't want to make a nuisance of myself. One other question for y'all: did you receive your O7 license via email, or did you find it in your account? I've already pestered Eric more than once over my licenses, which had apparently got spam-trapped. The other 50 files (Ozone, Alloy, Trash, etc.) all register OK - it's just the 64-bit Nectar that's uncooperative. I have traced the registration process using Process Monitor, and there is no indication there of a permissions issue or a missing dependency. However, I have verified that the DLLs are in fact 64-bit files.
At first I thought the install package was screwed up. When I look them up there it's saying the two failing DLLs are 32-bit. Although the scan fails, the DLLs still get entered into the inventory (registry).
The 32-bit version registers OK, so at least I have a workaround. Anybody running a 64-bit version of iZotope Nectar under Windows 8.1? If so, are you sure it's the 64-bit version? I have been unable to get 2 of the 3 Nectar Suite components (64-bit version) to register when scanned.