Windows 10: optaneshellext.dll and btha2dp.sys

Today I was doing an Autoruns scan, and found these files optaneshellext.dll and btha2dp.sys that were weird for me, specially the optaneshellext.dll file, since the other one is called "Microsoft Bluetooth A2dp driver: Bluetooth A2DP driver" and it having the word Microsoft gave me "confidence" that it was legit, but it also said it wasn't verified. But the optaneshellext.dll file is kind of suspicious for me, but I also don't know what is it neither what it's used for. Can someone tell me if those files are safe?

I also found these other files:

_wow64cpu

_wowarmhw

_wowarmhw

_xtajit

_xtajit

wow64

wow64win


I already did a bit of research and found that they were legit and were needed for windows. Can someone confirm this?

Thank you

:)

 

DLL Missing

The problem is, that the required DLL is not actually even listed there.
There are just dozens of download adware links from the top to the bottom.

 

DLL Missing

I actually posted the link for the "list of troubleshooting steps to resolve your boost_threads.dll problems" which is located half way down the page. I did not mean to promote any downloads.

Why don't I just go back and indicate that on my original post? That way there's access to the 'step-by-step' instructions, which are accessed via those green 'plus' signs next to the topics.

If the link still needs to be removed, then let me know

 

Registering a dll

Hi Donald,





There are a lot of factors for this matter. to isolate the issue, we have some questions for you:

• 
  What application does the .dll belongs to?
  
• 
  Have you tried uninstalling/reinstalling the software?
  
• 
  Aside from downloading and installing the .dll file, what other troubleshooting steps have you done so far?
  

We'll be waiting for your response.



Regards.