How to detect launching from a “Startup”-folder shortcut?

Your "cleanness" appears to be an artificial construct at best. If you're telling the user to create a shortcut in the start-up folder, you're already leaving a footprint (and, to be honest, there's little difference between "myprog. Exe" and "myprog.

Exe -m"). In that case, there are some easier approaches than automagically trying to detect where you're running from.

Even though you have already solver the problem I just wanted to say that it's possible to detect if the program was launched from shortcut. Once you have the shortcut path you can compare it to startup folder.

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