Hi, sorry, I've seen all kinds of questions concerning this, but am not quite satified with the solutions.
We have different programs in the disk space management field. Often these need to be started elevated.
When a pdf file is opened via double-click or context menu Open command, this causes Acrobat to only start 2 AcroRd processes in the background, no GUI, no error. As a further complication, Acrobat Reader cannot be started normally, as long as these processes are running.
Common solutions I'm aware of are: (1) don't start program as admin or (2) Turn off Acrobat's protected mode.
But actually both solutions are not desirable. The programs rely on being started with administrative rights. And telling customers to turn off the protected mode is not a solution either.
What we find most irritating is that opening Acrobat from an elevated process works for some programs, but not for others. If you e.g. run a standard file open dialog from within an elevated process and use a pdf file's context menu to open it, there is normally no problem - Acrobat will start elevated too, the document is displayed. Also, one of our programs generally doesn't cause the problem (as long as we don't change the name of the exe).
So the question: there must be a detail we have missed until now. What exactly determines if this works or not? Why does it work for some programs but not for others?
I hope, that this is the right place to post this. We have not experienced the same problem with any other software than Acrobat yet.
Suggest you de-elevate before opening any files. It's entirely insppropriate to run external apps elevated when it isn't needed. It also may mess up licensing. I suspect Protected Mode blocks this as part of maximum security practice.