When is the global variable hinstance assigned?

When learning resource files and hook functions, we often use the global variable of the current module handle (hinstance). Today I want to know when it assigns a value.

Enter hinstance; "Ctrl + mouse" to find its declaration: Row 29th of the sysinit unit (Delphi 2007)-hinstance: longword;
It seems that the hidden unit of Delphi is not just system. Pas, but also sysinit. Pas.

In row 658 of the sysinit unit, find its value assignment statement: hinstance: = getmodulehandle (NiL );
Is in the process of _ initexe.

ThatProgramWhen is the _ initexe method executed?

Debugging with F7 one by one... cannot be found!

Check project-> options-> compiler-> use DEBUG dcus, and then use F7 to debug the code one by one:

The original program came to the sysinit unit to execute the _ initexe method before executing application. initialize!