why can't call a dll function in exe which start a thread?

[Gintaras]

QM does not show threads started in exe process. You can see threads of your exe process in "Explore Windows" dialog.

Also, the first exe thread must not end until other threads not finished their work.

But if the return value is different, the reason probably is other.
Maybe because exe file path is different?
Maybe exe must run as administrator, but it doesn't?