Create a folder here C:\ProgramData\VEGAS Pro\Application Extensions and add the loader dll to it. Don't save it only in VEGAS Pro 22's directory or VP 21, 23, etc. won't be able to find it. I have it working here on a machine with a fresh install of VEGAS and PluralEyes (new computer).

That worked to add the dll file and adding the directory. Thanks for the help.
Any word on why the Vegas sync function doesn't work?

For the audio sync, what version of VEGAS are you using? 22.194?

AudioSyncR from Happy Otter Scripts is my go-to solution, and whips Pluraleyes hands down.

https://tools4vegas.com/audiosyncr/

However, many users don't like the steep learning curve asspcoated wotj properly selecting the buffer zone around the target area to be synced, or try to sync the whole file, which is flawed optimism..

For the audio sync, what version of VEGAS are you using? 22.194?

Yes, I'm using 22.194.
Seems like Vegas is falling behind somewhat in comparison to what some of the other editing programs are doing now like Davinci. What do you think?

I think it's a feature in active development so user feedback with what's working and not will help speed up the process.

VEGAS did have features like auto transcriptions just after Premiere and before Resolve so not completely behind.

It's impossible to tell why it doesn't work. This would need more detailed investigation. Could be the file format or the audio signal itself.

@Roger Bansemer

Seems like Vegas is falling behind somewhat in comparison to what some of the other editing programs are doing now like Davinci. What do you think?

No!. Vegas is not falling behind...... Davinci has its strong points, Premiere has its strong points and Vegas has its strong points.

I'm using VPro 22 build 194.

I used to love PluralEyes, but my impression is that it doesn't work in VPro releases after about 17(?)

I did just go through the steps outlined earlier in this thread... and yes, now PluralEyes even does show up in my Vegas Extensions. But when I try to launch it, what comes up is the Red Giant Application Manager. I go through another step or two, and get to a Red Giant "Sign In" window. It says my password is wrong, so I change my password with Red Giant (which is now "maxon").. Then I go back through the steps of launching the Plural Eyes extension in Vegas 22, and... again it says my password is wrong, although I entered the password I just changed-to.

The built-in Vegas Pro synchronizer doesn't work at all... runs for a long time, then produces no synched result. I really miss PluralEyes, and would purchase it again if maxon resuscitated it to work with VPro22.

Contact Maxon support as they can give you a working installer for PluralEyes 4.. It works fine with VP22.

@ernie-tamminga PluralEyes 4 (which is an older version) works perfectly well in Vegas Pro 21 & 22 and gets the job done. Good idea to follow RogerS suggestion.... As for the newer versions from Maxon, i cannot speak on that.

@ernie-tamminga 

 and would purchase it again if maxon resuscitated it to work with VPro22

In another thread user mention that he was dropping it as at subscription of $80/month it was a bit much.

Yikes! That's HIGH! Also, I try to avoid "subscriptions" as much as possible.

I'll plug along with manual synchronization. I rarely use more than 4 tracks, so it's handle-able...

@ernie-tamminga

"But when I try to launch it, what comes up is the Red Giant Application Manager. "

Try removing/uninstalling any red giant items in programs and features. If necessary also remove Pluraleyes and install pluraleyes again. If necessary then follow the suggestions in the 1st. 3 posts in this thread.

All the above assumes you have Pluraleyes ver. 4 installer.

Thanks... i'll give that a try and see what happens. (I do have the installer, I'm pretty sure...)

I had same issues re: Red Giant. Those steps worked for me, good luck.

The installer I have is incorporated into the Red Giant "shooter suite" installer... I ran the installer and after some hoops (without PluralEyes being installed), I was taken to the Maxon website where it told me that for "Legacy Products" I have to submit a support request for the latest available installer. So I did submit such a request, along with my receipt from when I purchased PluralEyes. I'm hoping this all eventually adds up to "progress."

Their support helped me earlier this year get it working on a new computer.

@ernie-tamminga

Way to go.

I had spent a lot of time previously going in circles with Red Giant/Maxon exactly as you have so that when I needed to again add it to my laptop a few days ago (lost Windows and nvme ssd, had to reinstall new Win 10, new key) that I did the following.

Instructions to self ...

In Vegas Pro Pluraleyes displays under "Tools/Extensions"

To add Pluraleyes as a button go to "Options/Customise tool bars", select Pluraleyes then click add.

To fresh install ...

1) Run "Shooter Suite 13.1.6 Setup.exe"
2) Enter "KEY" ...xxxxxetc 
3) Don't check any of the check boxes for "Trial"
4) When it launches internet explorer at the end just close.
5) This leaves Pluraleyes at version 4.1.6. 
6) Attempting to install a later version such as 4.12 or 4.1.11 is a nightmare.

Run VP. The 1st time I ran it Pluraleyes didn't show up.
Ran VP again and it was there.

Someday I may get around to doing as per your "submit such a request" It may lead to a later version than 4.1.6.

It took two messages for support to help me get 4.1.12 working with the installer they provided.

I forgot to mention that I was avoiding getting involved with support in case the update they supplied would mean I was in a subscription.

PluralEyes is no longer sold so nothing to worry about.