Hi Paul,
There is now a Visual COBOL forum available on this Rocket site. I would recommend that future questions be directed to that forum.
I just downloaded the vctraining.zip file and I did not have a problem with it. What anti-virus software are you using that is flagging it as a virus?
Do you currently have the Visual COBOL product installed?
This is a prerequisite to the Learning COBOL course. Currently our Personal COBOL download site has not been transitioned to Rocket so the product is not available for download.
As an alternative, there is a free Community version of Visual COBOL available which is installed when you install the Learn COBOL extension into Visual Studio Code. Please see Learn COBOL - Visual Studio Marketplace