Hello!
I have been playing FF7 with 7H ver 1.56 for about a month now with almost no problems (occasional crash if alt-tabbing during a cut-scene). This morning I went to play and when I hit Launch Game, the black window comes up to start the game, makes a beep, and then closes without any error code.
Not sure if it helps, but the only changes I've made to my PC since I last played was I had to take all my USB connections out and reconnect them (keyboard, mouse, headset, and wifi-adapter).
Last thing I did in-game was get Cid and park the plane on an island to save. I also have my profile saved to a .txt file, but not sure how I'd link it. Any advice is appreciated!