v. 5.6.1 throwing random "Class not registered" errors

[JavaWeasel]

I'm on Win10 using WDD v. 5.6.1. I'm assuming there's a DLL that needs to be registered, but I can't figure out which one it is by looking at ProcessMonitor. Here's the error:
{
"ClassName": "System.Runtime.InteropServices.COMException",
"Message": "Class not registered (0x80040154 (REGDB_E_CLASSNOTREG))",
"Data": null,
"InnerException": null,
"HelpURL": null,
"StackTraceString": " at WinDynamicDesktop.COM.DesktopWallpaperFactory.Create()\r\n at WinDynamicDesktop.WallpaperApi.SetWallpaper(String imagePath, Int32 displayIndex)\r\n at WinDynamicDesktop.DesktopHelper.SetWallpaper(String imagePath, Int32 displayIndex)\r\n at WinDynamicDesktop.EventScheduler.HandleDisplayEvent(DisplayEvent e)",
"RemoteStackTraceString": null,
"RemoteStackIndex": 0,
"ExceptionMethod": null,
"HResult": -2147221164,
"Source": "WinDynamicDesktop",
"WatsonBuckets": null
}
I'm hoping someone can point out the DLL so I can register it.

[t1m0thyj]

@JavaWeasel Does this error happen every time the wallpaper is updated, or just occasionally?

[JavaWeasel]

Hey T1m0thyj,
Occasionally. That's what makes it tricky to figure out. It happens about once a month, but not at the same times. I've tried reinstalling after the event in March, but it threw the error again today.

[t1m0thyj]

Please try to enable the "debugLogging" setting as described here: https://github.com/t1m0thyj/WinDynamicDesktop/wiki/Troubleshooting#obtaining-detailed-logs

And send log files from the WinDD app directory the next time the error happens.

[JavaWeasel]

Thanks t1m0thyj,
Of course, the day before I got this reply, it threw another library not found error. I've since enabled debug logging, and when it happens sometime next month, we'll hopefully have the full story.

[t1m0thyj]

Did you by any chance run a tool like Disk Cleanup or CCleaner that cleans out the system temp folder shortly before the error happened? WinDD extracts some DLLs into the temp dir and I've seen some similar errors when they are missing.

[JavaWeasel]

Nope. I haven't used either one in a long time.