This DLL issue is a common issue for plenty of software. Either the library is missing or needs updating.

Example:
https://obsproject.com/fo...g-and-jpg-error.33123/

If updating your C++ libraries does not work then you should contact UAD support. Have you tried running Sonar as administrator yourself first?

DA, thank you for your time, is UAD working flawlessly for you?

Don't own any UAD products sorry Software, drivers, firmware, operating systems, applications... all the same sort of issues mostly :)... Every now and again you are surprised...
 
Cheers

I have been having MAJOR issues deleting UAD plugs within SONAR since UAD plugs existed. Not a disaster every time, but randomly deleting UAD plugs (and some others) but I can't repeat them to say exactly what I am doing when SONAR crashes.... it becomes unresponsive and requires a HARD QUIT.  
 
This has happened with WIN XP, 7 and 8 and Sonar back to whatever version was up to date in 2005.... new versions of WIN or SONAR has not made this problem disappear.  It is a BUZZ KILL and I usually use the crash to SHUT DOWN the system until next time.
 
It is not happening every 10 minutes or every time I insert or delete a PLUGIN but does happen every few hours or so.
 
Not complaining, just learned to live with this.
 
JK

Hi. Which version of UAD software are you using? Is it pci, or firewire?
Best of luck.