This comment may be off-topic for Np++ here; but, you shouldn’t have had to do that! I suppose, though rare, that some cosmic particle corrupted wintrust.dll but; that’s suspicious behavior… to me! I’d certainly not just settle for fixing that unless you ‘know’ why it was replaced, or corrupt… especially if not missing.
If it got corrupted then it’s possible some 3rd party app may have corrupted the registry, or ‘something else is going on’ ?!? If you do auto backups of your registry I’d try to do a restore if you have one from a date prior to the issue to see if that fixes the problem. Since it may also ‘fix’?!? (cough) other issues that were the cause. At your discretion of course, as going back a few days, depending on what apps and system changes you’ve done would ‘naturally’ be affected by a restore; however not doing a restore might cause future issues left unresolved, such as a corrupted registry as in registry keys?!?
At least do a Windows Defender, or other anti-virus scan, and a sfc (systems file check). IOW although the issue affected Np++, as you pointed out, other parts fo the system were also affected (infected?). I would want to rule out the latter!
(Sorry for the slightly off -topic guys.)