Just thought about how to store the little bits and pieces I stumble over, so I decided to collect them in this "Useful snippets Collection Thread", ready to be found via the forum search .
1. Set FileOpenDialog, FileSaveDialog or FileSelectFolder topmost
I wondered how to set these standard dialog topmost. Turns out it's quite easy by using a topmost dummy GUI as parent without displaying it.
; Not topmost
FileOpenDialog("FileOpenDialog", @ScriptDir, "All (*.*)", 1 + 4, "")