So like while imprting we do


Kernel32 and user32 are system dlls they will always be present on all windows systems

but MSVCRT is NOT preinstalled
this makes out .exe dependent on this DLL.
CAN WE PACKAGE THIS DLL INTO THE EXE MAKING THE EXE INDEPENDANT

Technically: You can statically link MSVCRT if you want to. There are tools that will link DLLs into EXEs.

Legally: MS doesn't permit any alternate use of MSVCRT. Although some countries have different rules, might pay to check before you decide.

Wait dont all C++ Exes bundle runtime with them? How is that legal then?? cuz they dont require any such DLL

Alternatively can i use UCRTBASE.DLL as it is present on all systems

Providing a separate DLL during installation is permitted by many licenses (that is the whole point of the DLL). Statically linking it into an exe in not permitted by many licenses. Check the license for each DLL to see what it allows.

Specifically for MSVCRT, MS doesn't allow static linking. But as mentioned above, your country (or the end user's country) might make it legal.

Interesting... so that "import" statement in FASM -- is it static linking or dynamic?
I use that for MSVCRT for, like, decades.

"import" is dynamic linking. It links a DLL file at runtime.

Static linking doesn't need any import because the code is already linked in the exe at compile time.