Hello Fellow MGI Photo Suite Ver 4 devotees. I have discovered a reliably stable Windows 7 workaround to our experiences of Photo Suite closing when we click the "open file" button. This will suffice until a more solid workaround is found for Windows 7 compatibility.
This works on my laptop’s Windows 7 Home Edition 64-bit and the desktop Windows 7 Ultimate 32-bit OS.
Install MGI Photo Suite then do nothing more with it.
Download and install the current version (4.3) of FastStone Image Viewer (freeware for personal use).
Open FastStone, click the "Settings" tab near the top of the screen, click the next "Settings" tab from the pull-down menu.
Click the "Programs" button (second from the right) [Here you are designating an external, aka Third-Party program, to use as a secondary editing program inside FastStone.
Click the "Add" button near the bottom of that window. Browse to the location of MGI Photo Suite on your hard drive. Keep clicking folders until you see the "Setup.exe," file, click the open button in the small window, and then OK. You will see "PhotoSuite" added to the FastView Settings/Program window. Click "OK" to close that window and return to the editing screen.
You’re still inside the FastStone program. Find any image file you want to manipulate on your drive. Click the thumbnail image once to highlight it with a blue border.
At the top of the screen, click "Edit," hover your mouse over "Edit with External Program" then you’ll see "PhotoSuite" listed to the right, left click it once and you’re on your way as usual.
[Note: Remember, don’t try using the "Open" file feature in Photo Suite or you will close the program. Instead, use the "minimize" button to keep the program open, then either select another image to edit and/or close both programs when you are finished.]
Also, don’t forget to explore the rich features of FastStone Image Viewer, it can only enhance what you already enjoy about Photo Suite. The developers of FastStone have done a great job and are willing to accept donations.
Good luck and enjoy Photo Suite as we always have