This software is very, very old. Last update was 2004. It would not launch in Win7 or Win10 native environment.
I had to launch it in DOSBOX (DOS emulator!) and it did load and work.
You need to go into "File" then select "Change drive or format".
Looks like it only accepts Metastock or CSI data.
You can select which of the file formats to search for on your disk by entering 0 for "no", or 1 for "yes".
Then you enter a disk drive letter. Appears it will only accept "C" drive as it states other drive letters are invalid/not found.
Since it has to load on the C drive in a separate directory, it's not installing under a typical Windows "Program Files" folder.
Finally, you enter a folder name or leave blank to have it search the entire C drive. I don't suggest that, as I was able to put some Metastock data in a work folder on my C drive under a "DATA" folder and got it to find the data and load it successfully immediately.
Hope this helps.