Just me, but that said I didn't have the Video or tts dll. I had Overloud which nobody else seems to have had. 
Mcafee seems to be associated with the   CWVideoEngine.dll   and   TTSLame.dll 
We need more people reporting 

So far so good. Been over a day now with no more errors. I took the .dll files that kept getting posted as bad image errors and put them in the excluded Mcafee scan folder. Reloaded the latest version of Sonar artist and it seems to have worked.

Windows Version: 10 Home 1703, build 15063.674
SONAR version: 2.0.5.81
DLL Affected: multivoicechorusflanger.dll (Apparently related to the Classic Creative FX Suite)
Error Message: Unable to register the DLL/OCX: RegSvr32 failed with exit code 0x3
When did the message show: Chose to "Install all" after clicking on SONAR Artist in CC. A couple minutes later the error came up.
Antivirus: Windows Defender
 
For me, this issue seemed to be related to the Classic Creative FX Suite.  I did nothing to resolve it right away, instead I went ahead and installed everything else (Rapture, CA-2A Leveling Amp, etc.).  Then I re-ran the FX Suite installation, and it went through no problem.  Whether that info is helpful or not, there it is. :)

Windows Version: 10 Home 1709
Software Issue: Corsair Utility Engine
DLL Affected: Various in the CUE folder depending on me re-installing, 0 byte dll's
Error Message: Bad image
When did the message show: On windows startup, but only occurred after the Windows 1709 update
Antivirus: McAfee
 
only reason I posted was because its not just Sonar thats having this problem over the last few weeks. Members of Corsair are reporting it to. So its either Windows update or Mcafee

Mine appears to have been McAfee and it even started on the date of the McAfee update. Isolated the .dll’s in question reinstalled the latest SONAR and restricted the .dlls from real time scanning and still good to go,

Hello,
 
Lately when I try to use Sonar on my Windows 10 laptop, I sometimes get an error message indicating that DSDConvert.dll (and sometimes a couple of other DLLs) are corrupt. When I examine these DLLs in file explorer I find that they have a size of zero bytes. At that point the only recourse is to reinstall Sonar.
 
This happens sporadically; sometimes I will get several days without seeing the problem, and sometimes it happens every other time I start Sonar. The obvious question is "What's changed in the environment," but the only answer I have is "Nothing to the best of my knowledge" (though we live in an era of automatically-updating software so who knows what has happened behind the scenes).
 
I use a Focusrite Scarlett 2i4 sound module connected via USB, in case that's relevant. Any ideas as to what's happening would be greatly appreciated!
 
Thanks!

If you're using McAfee Anti Virus this post may be helpful

Yes, that's very helpful! I had begun to suspect McAfee AV when Process Monitor showed it accessing the affected DLLs as I started Sonar. I could never catch it in the act of truncating the files, though. I've removed McAfee and turned on Windows Defender. So far so good.
 
Thanks very much for your help!

Merged with the ongoing thread.

gmshoward
Yes, that's very helpful! I had begun to suspect McAfee AV when Process Monitor showed it accessing the affected DLLs as I started Sonar. I could never catch it in the act of truncating the files, though. I've removed McAfee and turned on Windows Defender. So far so good.
 
Thanks very much for your help!

You're welcome. I'm sure Sonar will work as intended with Windows Defender enabled.