Hello, I have been using Dosbox for a Dos program for quite some time. My OS is Windows 10 and all had been fine until today. When I got the following. (See Attachment) Any help is appreciated.

That's where it was, thank for the help !!!

I found DOSBox and love it, it helps me run an old Dos program I've used for years but have a problem. I created either a config or bat file to open this particular program but for the life of me can't find where it's located. Can someone give me a hint where I can look ? Thanks in Advance