using VbTrickThreading-master examples without the typelibs for Callback and Marshal

[The trick]

Hello the trick,

1. How is the following GUID extracted in the interfaces.h file of C based exe project for the frmThread form of the CallbackThread standard dll project.


(0x33AD4F39, 0x6699, 0x11CF, 0xB7, 0x0C, 0x00, 0xAA, 0x00, 0x60, 0xD3, 0x93);

Thanks

It's VB6-Form interface.