how to compile windows NT4/2000?

If you would like to play with/learn about how Windows NT/2K works and are put together, you should check out:
Reactos
These guys are building a binary compatible NT operating system from the ground up. An amazing amount of it is already in place inluding most of the low leve kernel support. Best of all, its an open source project.
Although it is not the source code to Windows, I have used it to determine how functions 'probably' work with great success.

WCFF

[goggles99]

I would take a good look at WINE.
They are much farther along then Reactos...

Originally Posted by goggles99

I would take a good look at WINE.
They are much farther along then Reactos...

Actually, much of the high level implementation (e.g. Above GDI) is shared between the Wine and Reactos projects. There are programmers on both projects that make sure changes are sync as Reactos is providing Wine with greatly enhanced low level compatiblity and Wine is providing a complete GUI layer for Reactos to run apps and their explorer shell.

The most interesting part of Reactos is the binary interface duplication all the way into the kernel level. Where wine calls linux/un*x system calls, essentially emulating a function, Reactos has built the exact same substrate within which all their code lies. Due to the API restrictions, much of the functional guts of the functions (esp, API functions) tend to match closely to Microsoft's code (per the DDK samples). The main differences has to do with side effects that Reactos must find to duplicate, which should not be relied on in the first place.

WCFF

AFAIK��The leaking code is not complete yet.

When the code leaked, I got it from net and check it rough.

It's obviously the leaking code is just a piece of the whole project.

BTW: Some shell App can compiled.

Some more information on the source code is available from AndreaGeddon @ RET -- http://www.reteam.org/papers/e52.pdf

I've *some* of this paper and its really good. Enjoy!