Right, I was born in 90.

Regarding:

I know about most of it. I have a book on it all. I know what assembly is, but am not good at (but hey, you weren't good at C/C++ when you just heard about it either). I think it would be a good expierence!;D

Ambitious, aren't we? Before you start thinking of writing a Windows-compatible OS, you'll need certain things.

First, you aren't going to complete this alone. By the time any individual programmer would finish such a project, Windows will have had 2 new revisions out, which will likely invalidate much of your work.

Secondly, this is not a trivial task, by far. Writing an OS is one thing; writing a GUI OS is another. Writing an OS that mimics the functionality of an existing OS, especially a Microsoft OS that whose documentation is not necessarily in-line with the real code (some Win32 functions do things that are counter to the docs, or they do more or less than the docs say. Some even affect other things than what they reasonably should)... this is a truly ambitious project, for even the most seasoned programmers.

You are talking about nothing less than reverse engineering Windows and re-implementing every single Win32 function. And even then, if your project is really going to allow Win32 apps to run, you're going to have to implement more than just the Win32 API. Dynamically-linked MFC projects require MFC's .dll file; unless you steal it from a real copy of Windows, you'll have to write one (granted, you're lucky here: Microsoft gives away MFC's source code). You will have to implement the VB .dll file such that you will be able to run the numerous VB apps (including parts of MS Office apps).

You're going to need to implement the old OLE, OLE2.0, and COM. You'll need to implement the ActiveX specification. And you will need to implement whatever Windows does to attach DirectX.

We're talking about millions and millions of lines of code here. This is a project of massive proportions.

If you just want to write an OS Kernel that has native Allegro support or something, that's quite doable. But doing that on top of making it emulate Windows... that is a major undertaking.

It is a massive undertaking. But YOu have to start somewhere right? so start with a nice multitasking OS, then layer the windows stuff on later.

WHere would I start? And miran: i have made a game called Jackpot, where you guess a number. Complete with AI. About 800 lines of code. But the AI isn't that great. And it doesn't have Allegro, i made it before i heard of Allegro.8-)

Sorry I found this thread too late, but I just noticed that RichOS was mentioned -- thus I have to mention a few things.

True, RichOS is not an "Operating System". I was a little ambitious one summer, about three years ago (all current versions available were written in QB4.5 btw). I realized from the beginning that a full operating system it would never be. At that point, it is/was really just a DOS shell - a GUI capable of running its own programs (which, if you'll notice, is just interpereted).

Right now I'm working on its next version, which will be written in C++, with Allegro to accompany the GUI system. This one, though, will be a full kernel. I'm currently taking an Operating Systems course, and enveloped myself with some kernel tutorials and such. Just search google, and you can find a wealth of information. As of right now, I'm working with FreeDOS as a model and reference.

Thomas' statement about the 'cache kernel' is a very good one.

Ok. Bobby. No offense, but you're 12 (born in 90 - did i do my math right?). I started coding when I was 10, and tried to make RichOS when I was 15. Look how it turned out. Beleive me. Its not until now, that RichOS might actually become something more than a DOS shell. This is a daunting task. Kernel writing is not what it at first appears to be. You have to write code to take care of the most mundane tasks that you always took for granted. Listen to Thomas and don't do what I did - make the kernel absolutely seperate from the GUI.

BTW, the name for RichOS came when I was telling a friend that I was attempting (key word here) to make an Operating System and he jokingly asked - "what are you going to call it... RichOS?", and so it is named.

And, unlike others, I will sarcastically say, Bobby, good luck. Not that I have anything inately against you, I just think that its over your head. Way over.

I just need a good idea!!;)

TicTacToe -- Nice Idea!!

But I have two problem. How to sense where the mouse is clicked, and TicTacToe-AI -- for playing against the computer..???

Why would he need a gui? [edit] ooohhh.. edit war [/edit]

he just needs some simple math...

Lesse, I started programming when I was 8...
I used OS dev tuts probably about 1 year ago (when I was 13).

I got as far as a simple command line, that didn't do anything besides shut-down (which didn't restart).

It was terribly confusing... You need to know assembly language, of course... That was where I faltered (I only knew a very little of it). I didn't attempt to design any type of excecutable, and as such there was no multi-tasking or memory management.

How well do you know your language? What language were you planning on using?

Depeneding on your skills, you might try first a simple snake or tetris clone, then go to Win32 or MFC (which is harder than allegro), then go to a compiler (that's a toughy), then maybe a shell extension (you might want to do that before the compiler, though), finally a simple OS.

This is just my opinion, though.

miran: I'm 14, I had a C64, I found it at a garage sale... Wow, fun it is not, coding in C++ and then learning BASIC...

[edit]
geez, there's like, 6 replies in the time it took me to write that...

Click here for a truckload of tutorials and completed simple games including Tic-Tac-Toe...

I'm dumb!.. Yes. I'd deffinitly wait to program a Win32 API replacement. TicTacToe sounds good.

maybe i'll make it some type of 3d game...

Here's an idea. Why don't you make a little collection of simple games. A simple GUI application with a menu or maybe some buttons that would allow you to select which game you would like to play. Like when you click one button Tic-Tac-Toe pops up, when you click another one Tetris starts and so on...

Now, there's no excuse not to plug my lib: MASkinG

EDIT:
Btw, you kids type too fast...