C:\Program Files\Cakewalk\Shared Utilities\CW120Auto.dll
Unable to register the DLL/OCX: RegSvr32 failed with exit code 0x3.
If I ignore it does the same thing with every following file.
 

 
Bill
 
edit: added [Solved] - scook

This error is often due to pending Windows updates. Make sure Windows is up to date.

After having the extraction freeze twice, I restarted my computer. After trying again, it hung, but the install didn't stop responding the way it did the first two times. After about 10 minutes, it started installing again, then gave me your error message and rolled itself back. I'm on windows 7 pro fully updated, and have rarely had few if any install problems. Certainly nothing like this. I'm not running any type of virus protection other the the standard MS install.

Are you using the new Command Center v1.1.5.0?

Yes. I'm on the new Command Center. 

The error message looks like it could permissions related...    If the SONAR installer download itself is in your CCC cache folder, it may be worth trying to manually run with the right-click Run As Administrator option.   If nothing else, one more thing to rule out.

I don't know what Microsoft did but trying to get Windows 7 fully up to date is a major pain.
I updated a laptop to Windows 10 and it was a 4 day effort!  Updates kept hanging. I tried every bit of advice on the interwebs to get it unstuck.  
I have another VM image of Windows 7 that I tried to just install the updates (not upgrade to 10) that still hasn't updated but then I didn't keep at it, running the VM on a Mac which tends to heat it up.  
 
One thing you can try is to install the VS2015 redist separately.
You can obtain that here:
https://www.microsoft.com/en-us/download/details.aspx?id=48145
Then run the SONAR install again once that is installed.
 
We built the 2016 edition with Visual Studio 2015 which does have some performance gains in the compiler and linker.  However, that does require the newer c runtime, etc.be installed.  Our installer does include this and install it, but on Win 7 certain combinations of updates not being present can sometimes lead to delays or failures completing the dependent redistributable installers.
 
Keith 

I checked for updates again last night, and windows update told me that there were not available. So, I went to bed and figured I would try again this morning. I went to the MS site and downloaded their utility, the Automated Troubleshooter, which is recommended to fix updates for windows 7. 
 
https://support.microsoft.com/en-us/gp/windows-update-issues/en-us
 
I ran the utility, but it hung on the "resolving issues" portion for over an hour. I then rebooted my computer and ran windows update again. The updater now says that there are 54(!!!) available updates. So, I'm installing them. I'll keep updating until I can't, then try again. 
 
I was looking forward to the early adoption program, but I'm not happy that it doesn't come with the release ezine. Seems a bit like taking a hike with a blindfold on.

Well I finally got it installed...I started with updates...then more updates...then some problems. At some point Windows Update stopped working so I tried the Fix tool...that stopped working as well and it reported a problem with my Vegas Pro 13...great! It turns out one of the updates turned on Windows Firewall which blocked the things I wanted(and probably not the ones I don't ;) ). I turned the Firewall off and early access installed right away. I have a hardware firewall so I don't use the Windows one. Now to play!
 
Bill

Thanks for the feedback. Moving to SONAR forum. Marking Solved.