Hi
I've done both. When it crashed there were at least 2, possibly 3 files open. Looking at the file structure it may be that there is a file within a file, within a file. I've attached a screen grab of the file structure.
I've tried copying the inside of the first DB file, removing the already in use.lock file (I found that one), compressing and changing the extension. Then I tried compressing the inside of the 2nd DB file with the locked file. Neither file would open and I have attached a screen shot of the error message - it's not a good one.
Thanks for your continued help.