Noob trying to learn; how can I make my programs look Windows 95 / Nirsoft-like?

Hey all, probably an odd question but I really like the look, usability and accessibility of the programs that Nirsoft makes and how they're portable. Is there some design guide for this exact look and functionality? Like all his programs look consistent and Win 95-like. And what program does he use to create them? I know he mentions C++ to code it. I'm still a beginner in every way but I want to go this route if I make something. I also like that there's a command line option for each program to. Any pointers? Are there any old guides for this kind of software making?