Check Your Vendor's TLS Certificate Expiration Dates

If you run a business that takes credit cards, then it's a pretty cool day when your credit card processor lets their SSL/TLS certificates expire.  Not only did they let this happen on one of their domains, it happened again on another important one.



Remember the day when you ran a business without needing to be dependent on this many variables?

The referenced assembly is not installed on your system

Press the WINDOWSKEY + R
It should give you a run box.
paste this into the field and click OK

%userprofile%\Appdata\Local\Apps\2.0

Browse into these folders and if all the files you see pertain to the
program you're having trouble with, then just delete all the folders
within the 2.0 directory.   Your program should then work.