Resolve the bug revealed in [forum:16880a28aad1a868 | forum post 16880a28aad1a868] in which the db_open() appendvfs check can misinteract with g.nameOfExe. This is in a branch until a Windows user can confirm that the g.nameOfExe change in main.c behaves as desired on Windows. This was a collaborative bug fix via /chat, not my own. Edit: test success on Windows reported by Martin G.