Suppressing the startup window is described even with an example. The rest of the issues have nothing to do with the startup window.

In a PC under Windows, you can't open the same file for writing from different applications at the same time. You must terminate one application before the next one can open the file. But our manual is a Gamestudio manual after all, not a Windows manual. We can't cover all possible problems that can happen when working with files on a PC under Windows.