I saw 3 sample codes for a service, which use

int main(...)

as a starting function for a service.

And I saw one sample code which uses MFC.

But I couldn't find any sample code which uses

int APIENTRY WinMain(...)

as a starting function for a service.

I tried to rewrite one of the samples which uses
main(...) to WinMain(...) and everything worked fine.

My question: is which approach is the better way to write a service?

Thank you.